CN108347291A - Electronic equipment and method for wireless communication system - Google Patents

Electronic equipment and method for wireless communication system Download PDF

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Publication number
CN108347291A
CN108347291A CN201710053390.2A CN201710053390A CN108347291A CN 108347291 A CN108347291 A CN 108347291A CN 201710053390 A CN201710053390 A CN 201710053390A CN 108347291 A CN108347291 A CN 108347291A
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CN
China
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terminal device
detection
data
grouping
electronic equipment
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CN201710053390.2A
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Chinese (zh)
Inventor
陈巍
郭欣
彭建军
白铂
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索尼公司
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Priority to CN201710053390.2A priority Critical patent/CN108347291A/en
Publication of CN108347291A publication Critical patent/CN108347291A/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation where an allocation plan is defined based on the type of the allocated resource
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045Arrangements at the receiver end
    • H04L1/0047Decoding adapted to other signal detection operation
    • H04L1/0048Decoding adapted to other signal detection operation in conjunction with detection of multiuser or interfering signals, e.g. iteration between CDMA or MIMO detector and FEC decoder
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J11/00Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0023Interference mitigation or co-ordination
    • H04J11/0026Interference mitigation or co-ordination of multi-user interference
    • H04J11/0036Interference mitigation or co-ordination of multi-user interference at the receiver
    • H04J11/004Interference mitigation or co-ordination of multi-user interference at the receiver using regenerative subtractive interference cancellation
    • H04J11/0043Interference mitigation or co-ordination of multi-user interference at the receiver using regenerative subtractive interference cancellation by grouping or ordering the users
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045Arrangements at the receiver end
    • H04L1/0047Decoding adapted to other signal detection operation
    • H04L1/005Iterative decoding, including iteration between signal detection and decoding operation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045Arrangements at the receiver end
    • H04L1/0054Maximum-likelihood or sequential decoding, e.g. Viterbi, Fano, ZJ algorithms
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045Arrangements at the receiver end
    • H04L1/0055MAP-decoding
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation where an allocation plan is defined based on the type of the allocated resource
    • H04W72/0446Wireless resource allocation where an allocation plan is defined based on the type of the allocated resource the resource being a slot, sub-slot or frame
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation where an allocation plan is defined based on the type of the allocated resource
    • H04W72/0453Wireless resource allocation where an allocation plan is defined based on the type of the allocated resource the resource being a frequency, carrier or frequency band
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices

Abstract

This disclosure relates to electronic equipment and method for wireless communication system.A kind of electronic equipment for wireless communication system includes processing circuit, the processing circuit is configured as carrying out terminal device grouping for data transmission based on terminal device information, wherein multiple data flows of the terminal device in same grouping are accessed by mode field multiple access carries out resource multiplex.The processing circuit is additionally configured at least one that the progress terminal device of the detection information based on data transmission is grouped, is grouped in interior resource re-allocation and data detection scheme update again, and wherein data detection scheme is decoded reception data for being based on serial sensing algorithm.

Description

Electronic equipment and method for wireless communication system

Technical field

Present disclose relates generally to the electronic equipment and method for wireless communication system, more particularly to passing through mould Formula domain (Pattern Domain) carries out multiple access access and carries out the electronic equipment and method of resource multiplex.

Background technology

With the sizable application of wireless communication technique and the rapid development of radio communication service, wireless communication system is gulped down The requirement of the amount of spitting and peak rate increasingly improves, to meet the user demand of continuous development.In order to improve wireless communication system Spectrum efficiency and increase the quantity of the accessible terminal device of wireless communication system, it has been proposed that various new multiple access connects Enter mode.These novel access modes include sparse coding multiple access access (Sparse Code Multiple Access, SCMA) technology.In SCMA, planisphere mapping is carried out to the data of one or more terminal devices and code domain extends so that two Hex notation is mapped as the code word in multi-dimensional sparse code book, to allow the data of one or more terminal devices same It is sent in running time-frequency resource;Correspondingly, receiving side by detection algorithm to the data being superimposed upon in same running time-frequency resource that receive It is detected, to isolate the data of each terminal device.Novel access mode further includes that figure divides multiple access to access (Pattern Division Multiple Access, PDMA) technology.In PDMA, by pattern (pattern) by one Or the data of multiple terminal devices are mapped in resource group, to allow the data of one or more terminal devices in same money It is sent in the group of source;Correspondingly, receiving side examines the data being superimposed upon in same resource group received by detection algorithm It surveys, to isolate the data of each terminal device.

Invention content

The brief overview about the disclosure is given below, in order to provide the basic of some aspects about the disclosure Understand.It is understood, however, that this general introduction is not the exhaustive general introduction about the disclosure.It is not intended to for determining The critical component or pith of the disclosure, nor being intended to limit the scope of the present disclosure.Its purpose is only with letter The form of change provides certain concepts about the disclosure, in this, as preamble in greater detail given later.

According to the one side of the disclosure, a kind of electronic equipment for wireless communication system is provided comprising processing electricity Road.The processing circuit can be configured as carries out terminal device grouping based on terminal device information for data transmission, wherein together Multiple data flows of terminal device in one grouping are accessed by mode field multiple access carries out resource multiplex.The processing circuit can be with The progress terminal device of the detection information based on data transmission is configured as to be grouped again, be grouped interior resource re-allocation and Data Detection side At least one of in case update, wherein data detection scheme is used to be decoded to receiving data based on serial sensing algorithm.

According to another aspect of the present disclosure, a kind of electronic equipment for wireless communication system is provided comprising processing Circuit.The processing circuit, which can be configured as, obtains terminal device group result, which is to be based on terminal Facility information is determined for data transmission, wherein multiple data flows of the terminal device in same grouping pass through mode field Multiple access access carries out resource multiplex.The processing circuit is also configured as obtaining terminal device weight group result, resource re-allocation As a result in newer data detection scheme at least one of, terminal device weight group result, resource re-allocation result and more In new data detection scheme at least one of be, wherein Data Detection side determined based on the detection information of data transmission Case is decoded the reception data received based on serial sensing algorithm for the electronic equipment.

According to another aspect of the present disclosure, a kind of method for communication is provided.This method may include being based on terminal Facility information carries out terminal device grouping for data transmission, wherein multiple data flows of the terminal device in same grouping pass through The access of mode field multiple access carries out resource multiplex.This method can also include that the detection information based on data transmission carries out terminal device At least one for being grouped, being grouped in interior resource re-allocation and data detection scheme update again, wherein data detection scheme is used for base It is decoded in serial sensing algorithm to receiving data.

According to another aspect of the present disclosure, a kind of method for communication is provided.This method may include obtaining terminal Device packets are as a result, the terminal device group result is determined for data transmission based on terminal device information, wherein Multiple data flows of terminal device in same grouping are accessed by mode field multiple access and carry out resource multiplex.This method can also wrap Include at least one obtained in terminal device weight group result, resource re-allocation result and newer data detection scheme, the end At least one in end equipment weight group result, resource re-allocation result and newer data detection scheme is to be based on data transmission Detection information and it is determined, wherein data detection scheme be used for based on serial sensing algorithm to the reception data that receive into Row decoding.

According to another aspect of the present disclosure, a kind of electronic equipment for wireless communication system is provided comprising serial Receiver is detected, which is configured to contain the parallel detection unit of at least two-stage, for receiving Mode field multiple access access signal carry out classification decoding, wherein support parallel multi-terminal equipment per level-one parallel detection unit Data Detection, the other parallel detection unit of prime decoding output as the known disturbances in rear rank parallel detection unit with Just it is eliminated from the mode field multiple access access signal received, and in the target data stream of the other parallel detection unit of prime Resource orthogonality is better than the resource orthogonality in the target data stream of the other parallel detection unit of rear class.

Other aspects of the disclosure additionally provide a kind of computer readable storage medium being stored with one or more instructions, The one or more instruction makes electronic equipment execute according to the disclosure in the one or more processors execution by electronic equipment Correlation method.

Description of the drawings

The disclosure can by reference to being better understood below in association with the detailed description given by attached drawing, wherein Same or analogous reference numeral has been used in all the appended drawings to indicate same or similar component.The attached drawing is together under The detailed description in face includes in the present specification and to form part of specification together, for the disclosure is further illustrated Embodiment and explain the disclosure principle and advantage.Wherein:

Figure 1A to Fig. 1 C shows according to an embodiment of the present disclosure by mode field multiple access technique multiplexing transmission money The example communication system in source.

Fig. 2 shows the exemplary electronic devices for wireless communication system according to the embodiment of the present disclosure.

Fig. 3 A show a kind of mode that can be used for terminal device grouping.

Fig. 3 B show the way of example being grouped according to the terminal device of the embodiment of the present disclosure.

Fig. 4 A and Fig. 4 B show the exemplary operations being grouped according to the terminal device of the embodiment of the present disclosure.

Fig. 5 A to Fig. 5 D show the detection process of the sample data detection scheme according to the embodiment of the present disclosure.

Fig. 6 shows the example of resource allocation in the grouping according to the embodiment of the present disclosure.

Fig. 7 is shown updates operative combination according to the example of the updating unit 210 of the embodiment of the present disclosure.

Fig. 8 A and Fig. 8 B show according to the embodiment of the present disclosure by the period or execute update operation according to trigger event The flow chart of the exemplary method of combination.

Fig. 9 is shown according to resource allocation adjustment mode example in a kind of group of the embodiment of the present disclosure.

Figure 10 shows another exemplary electronic device for wireless communication system according to the embodiment of the present disclosure.

Figure 11 A show the exemplary method for communication according to the embodiment of the present disclosure.

Figure 11 B show another exemplary method for communication according to the embodiment of the present disclosure.

Figure 12 A are shown between the base station and terminal device for uplink data transmission according to the embodiment of the present disclosure Example signalling interactive process.

Figure 12 B are shown between the base station and terminal device for downlink transmission according to the embodiment of the present disclosure Example signalling interactive process.

Figure 13 illustrates how the example that disclosed method is applied to cognitive radio communication scenes.

Figure 14 is the exemplary construction as the personal computer of adoptable information processing equipment in embodiment of the disclosure Block diagram;

Figure 15 is the first example for showing to apply the illustrative arrangement of the evolved node (eNB) of the technology of the disclosure Block diagram;

Figure 16 is the second exemplary block diagram for showing to apply the illustrative arrangement of the eNB of the technology of the disclosure;

Figure 17 is the exemplary block diagram for showing to apply the illustrative arrangement of the smart phone of the technology of the disclosure;And

Figure 18 is the exemplary block diagram for showing to apply the illustrative arrangement of the car navigation device of the technology of the disclosure.

Figure 19 shows the performance analysis chart of the data detection scheme according to the embodiment of the present disclosure.

Specific implementation mode

Hereinafter, the embodiment of present disclosure is described in detail with reference to the accompanying drawings.It should be noted that in this specification In attached drawing, the structural detail for having basically the same function and structure is denoted by the same reference numerals, and omit Repeated explanation to these structural details.

The exemplary embodiment of the disclosure is described hereinafter in connection with attached drawing.For clarity and conciseness, All features of actual implementation mode are not described in the description.It should be understood, however, that developing any this actual implementation Much decisions specific to embodiment must be made during example, to realize the objectives of developer, for example, symbol Restrictive condition those of related to system and business is closed, and these restrictive conditions may have with the difference of embodiment Changed.In addition, it will also be appreciated that although development is likely to be more complex and time-consuming, to having benefited from the disclosure For those skilled in the art of appearance, this development is only routine task.

Here, it should also be noted that, in order to avoid having obscured the disclosure because of unnecessary details, in the accompanying drawings only It shows with according to the closely related device structure of the scheme of the disclosure and/or processing step, and is omitted and disclosure relationship Little other details.

In the presence of the communication means for carrying out resource multiplex is accessed by mode field multiple access, set wherein " pattern " defines multiple terminals Occupancy situation of the standby data to multiple resources.Such as the resource of the data of terminal device can be embodied with some form of coding The pattern of occupancy.In the disclosure, " data of terminal device " or " data flow of terminal device " refer to setting from or to terminal The data or data flow that preparation is sent.In other words, " data of terminal device " or " data flow of terminal device " in some instances Include lower line number in other examples including the data or data flow transmitted from terminal device to base station in transmitting uplink data According to the data or data flow transmitted from base station to terminal device in transmission.The example of mode field multiple access access may include above-mentioned SCMA and PDMA, they are used as pattern to define the data of multiple terminal devices by multi-dimensional sparse code book and Eigen Structure respectively Occupancy situation to multiple resources and the data that each terminal device is distinguished with this, in the disclosure mode field multiple access access difference In the power domain multiple access access with the data of power features distinguishing terminal equipment.For example, in SCMA, sparse code book can be set It is calculated as indicating whether the data of terminal device occupy a certain resource by 1,0.Can be that each terminal device is set in PDMA Different patterns is counted to distinguish the occupancy situation to resource.In the context of the disclosure, resource can usually refer to time domain and Frequency domain resource.It will be appreciated by those skilled in the art that resource can also include other resource, as spatial domain resource and code domain provide Source.

It, can be by parallel detection algorithm to being respectively used to the more of multiple terminal devices in mode field multiple access technique A data stream is detected or is decoded.Parallel detection algorithm can utilize iterative manner while decode for all terminal devices Data flow.In other words, the detection or decoding that the data flow of terminal device of parallel detection algorithm pair carries out need not rely upon separately The testing result or decoding result of the data flow of one terminal device.After the example of parallel detection algorithm for example may include maximum Test probability (Maximum A Posteriori, MAP) detection algorithm, maximum likelihood (Maximum Likelihood, ML) detection Algorithm and message transmission (Message Passing Algorithm, MPA) detection algorithm etc..Parallel detection algorithm can be with More excellent detection performance is obtained with higher detection complexity.It is appreciated that in the complexity and system of parallel detection algorithm Number of resources it is related with terminal device number, number of resources and terminal device number are bigger, then detection complexity is higher.

It, can also be by serial sensing algorithm to being respectively used to multiple terminal devices in mode field multiple access technique Multiple data flows are detected or decode.Serial sensing algorithm can decode each terminal device one by one according to certain sequence Data flow.The detection or decoding that the data flow of terminal device of serial sensing algorithm pair carries out need to be depended in preceding terminal device Data flow testing result or decoding result.The example of serial sensing algorithm for example may include successive interference cancellation (Successive Interference Cancellation, SIC) detection algorithm.It is serial to examine compared with parallel detection algorithm The detection complexity of method of determining and calculating is relatively low, but to be detection performance have loss to cost.

One typical case scene of mode field multiple access technique is cell mobile communication systems.Figure 1A to Fig. 1 C is shown Example communication system according to an embodiment of the present disclosure by mode field multiple access technique multiplexing transmission resource.Below with The mode field multiple access system of Figure 1A to Fig. 1 C, but it will be apparent to one skilled in the art that the mode field are described for SCMA Any technology (such as PDMA) in mode field multiple access technique may be used in multiple access system.

Figure 1A shows the exemplary operations of transmitting terminal and receiving terminal in SCMA systems.In this example, it is assumed that in system Running time-frequency resource number be K, terminal device number is J, and the number of resources that each terminal device needs is N.As shown in Figure 1A, in transmitting terminal Place, first by encoding operation by binary bits information (such asWherein M is the constellation symbol in planisphere Number points) be modulated to N-dimensional constellation symbols (such as), and converted N-dimensional constellation symbols by mapping matrix V For sparse K tie up code word (such as).Mapping matrix for multiple terminal devices can generally have because Subgraph representation, following figure 6 describes K=4, J=6, each in the system factor figure F of N=2 situations, wherein factor graph F The corresponding resource node of row, each row correspond to a terminal device, and the i-th row jth column element is 1 phase for indicating terminal device j Constellation point is answered to occupy resource i, the i-th row jth column element is that 0 expression terminal device j is not take up resource i.Then, J terminal device Signal be sent to receiving terminal after multiple connection (multiplexed).At receiving terminal, for receiving signal (such as signal Y), it may be used using the sparsity for sending signal according to channel state information, the planisphere of factor graph F and multi-terminal equipment Such as MPA algorithms realize multi-terminal equipment Data Detection, that is, detect the signal X=(x of terminal device1,…,xJ)。

SCMA systems 100a in Figure 1B corresponds to uplink transmitting scene.As shown in Figure 1B, SCMA systems 100a packets Base station 105 and terminal device 110-1 to 110-J are included, terminal device 110-1 to 110-J is passed in uplink direction multiplexing time-frequency Defeated resource is to 105 transmission data of base station.

For uplink SCMA, any terminal equipment 110-1 to 110-J will according to respective planisphere, mapping matrix V Binary data is mapped as constellation symbol, and sparse code word is obtained using mapping matrix V.The signal of multiple terminal devices passes through nothing Line channel multiple connection is sent to base station 105, and base station 105 is decoded not after the signal for receiving multiple connection by parallel detection algorithm With the data of terminal device.In SCMA systems, Message Passing Algorithm (MPA) can be used for example and be used as parallel detection algorithm. In MPA algorithms, the number of each terminal device is detected in base station 105 using the sparsity for receiving signal on the running time-frequency resource of multiplexing According to.Specifically, base station 105 is after receiving the signal of multiple connection, according to the mapping square of each terminal device 110-1 to 110-J Battle array V establishes factor graph model F, and using each terminal device as a variable nodes, using each running time-frequency resource as one because Child node.Wherein, a terminal device occupies a running time-frequency resource, when with the variable nodes corresponding to the terminal device with this It is indicated because of the side between child node corresponding to frequency resource.Then, according to the planisphere of each terminal device 110-1 to 110-J Determine the possible value of each variable nodes (constellation symbol that i.e. terminal device may use when sending data) and every The probability of a value (initial value can be set as equal general).Then be iterated processing, in each iterative processing, variable nodes to Each the prior probability of its possible value is sent because of child node with what side was connected therewith.Because child node is being collected into variable nodes hair After the information sent, posterior probability is calculated according to the information received and is sent to variable nodes.The condition of convergence of iteration is Reach certain iterations or the difference of variable nodes are sent in iterative process twice information is less than the thresholding of setting.Repeatedly It withholds after holding back, the constellation point symbol that each terminal device 110-1 to 110-J is sent can be decoded.According to each terminal device The planisphere of 110-1 to 110-J can demodulate the binary data transmitted by it.

Although the sparsity of signal can make MPA algorithms realize multi-terminal equipment with lower complexity in SCMA systems It detects (signal for detecting each terminal device), but in the case where system terminal number of devices is larger (such as it is logical in future In the scenes such as the Internet of Things of letter), the detection complexity of uplink is still prodigious calculation processing burden for base station.It is right In in SCMA systems, each resource factor node detection complexity withProportional, wherein M is the constellation point in planisphere Number, dfFor the maximum value of overlapping terminals number of devices on single resource factor node, determined by mapping matrix.Whole resource factors Detection complexity on node withProportional, as noted above, K is resource factor number of nodes (i.e. running time-frequency resource Number).

SCMA systems 100b in Fig. 1 C corresponds to downlink transmission scenario.As shown in Figure 1 C, SCMA systems 100b with Base station 105 and terminal device 110-1 to 110-J is similarly included in Figure 1B, and base station 105 is transmitted in downlink direction multiplexing time-frequency Resource transmission data to terminal device 110-1 to 110-J.

For downlink SCMA, the binary data of any terminal equipment 110-1 to 110-J is mapped as by base station 105 Constellation symbol obtains sparse code word using mapping matrix V.The signal of multiple terminal devices is sent to each end after multiple connection End equipment.Unlike uplink SCMA, next received by base station by each terminal device 110-1 to 110-J The data for the terminal device itself are decoded after the signal of 105 multiple connections by parallel detection algorithm.For example, terminal device It, using the sparsity for receiving signal, can be decoded on the running time-frequency resource of multiplexing for the terminal device certainly by MPA algorithms The data of body.The processing that each terminal device 110-1 to 110-J is detected by MPA algorithms and base station in uplink SCMA Processing performed by 105 is similar, is not repeated to describe herein.

Significantly, since being to execute MPA algorithms by each terminal device, therefore consider in downlink SCMA The processing capacity of terminal device is weaker than base station, influence bigger of the higher complexity of the algorithm to terminal device.In downlink In SCMA, detection complexity still withIt is proportional.

Although Figure 1A to Fig. 1 C is described by taking SCMA technologies as an example, it will be clear for a person skilled in the art that applying Similar process can also be carried out when other mode field multiple access techniques such as PDMA.For example, for PDMA, with pattern matrix come generation Carry out sending side coding and receiving side decoding detection for above-mentioned mapping matrix, remaining processing with SCMA the case where it is similar. At this point, terminal device number and constellation be overlapped in system resource number, single resource as the Complexity classes of parallel detection algorithm Number of constellation points in figure one or more of is worked as related.

Below in conjunction with Fig. 2 descriptions according to the exemplary electronic device for wireless communication system of the embodiment of the present disclosure.According to A kind of embodiment, the electronic equipment 200 in Fig. 2 for example can be base station 105 in Figure 1A and Figure 1B or can be base station 105 part can also be for the equipment (such as base station controller) of control base station or for the equipment or one of base station Part.As shown in Fig. 2, in one embodiment, electronic equipment 200 may include pretreatment unit 205 and updating unit 210. In a further embodiment, electronic equipment 200 can also include detection information collector unit 215.Electronic equipment is described below The operation that 200 each unit executes.

Pretreatment unit 205 for example can be configured as carries out terminal device based on terminal device information for data transmission Grouping, wherein multiple data flows of the terminal device in same grouping are accessed by mode field multiple access and carry out resource multiplex.One In a example, the terminal device 110-1 to 110-J in Figure 1A and Figure 1B can be divided into G grouping, the total transfer resource of system Each grouping can be accordingly assigned to.In this example embodiment, the data flow of the terminal device in each grouping can pass through example If the mode field multiple access technique of SCMA carries out resource multiplex, the resource between different grouping is, for example, orthogonal.Due to dividing Resource orthogonality between group can only carry out Data Detection in each grouping.As described previously, parallel detection algorithm (example Such as MPA) complexity it is related with transfer resource number.In this example embodiment, since the transmission for being assigned to each terminal device grouping provides Source is reduced, therefore can reduce the complexity of parallel detection algorithm (such as MPA) to a certain extent.

Updating unit 210 for example can be configured as the detection information based on data transmission carry out terminal device be grouped again, At least one of during resource re-allocation and data detection scheme update in grouping.For example, being transmitted by detection information designation date Detection performance it is undesirable in the case of, system update unit 210 can grouping existing to the G of terminal device or single grouping Interior resource allocation is adjusted or updates the data detection scheme or carries out the arbitrary feasible combination of these operations, to Improve the detection performance of data transmission.In one embodiment, data detection scheme can be the number based on serial sensing algorithm According to detection scheme, which can be used for being decoded to receiving data based on serial sensing algorithm.As front is said Bright, parallel detection algorithm (such as MPA) decodes the data of all terminal devices, detection complexity by iterative manner simultaneously It is higher.In contrast, lower detection is had according to the data detection scheme based on serial sensing algorithm of the embodiment of the present disclosure Complexity.In embodiment of the disclosure, " serial sensing algorithm is based on " to be not limited to using only serial sensing algorithm, but index The thought of serial sensing is at least used according to detection scheme, i.e. detection process can combine serial sensing operation and parallel detection behaviour Make.

As described previously, electronic equipment 200 is also possible that detection information collector unit 215.Detection information is collected single Member 215 for example can be configured as the detection information collected in uplink and downlink data transmission, such as detection error information and detection are again Miscellaneous degree information etc. is grouped so that updating unit 210 is based on these detection informations progress terminal device, is grouped interior resource re-allocation again At least one of in being updated with data detection scheme.Electronic equipment 200 can not also include detection information collector unit 215, and It is to execute it by other units (such as updating unit 210) to operate and function.In one embodiment, by collecting line number up and down According to the detection information in transmission, detection information collector unit 215 can be configured as the detection generated for particular terminal device Information (such as detection error information of the terminal device), for the detection information of specific cluster, (such as terminal is set in the grouping Standby average detected control information) and (such as terminal device is averaged in whole system for the detection information of whole system Detection error information).

It should be noted that electronic equipment 200 can be used in uplink data transmission and downlink transmission At least one.In one example, electronic equipment 200 can be a part for base station 105 or base station 105.For example, in uplink In the transmission of road, at least one of grouping and update operation of electronic equipment 200 can be used for the detection decoding of base station side, under In uplink transmission, at least one of grouping and update operation of electronic equipment 200 can be used for the detection decoding of end side. According to some embodiments, in uplink data transmission, detection information collector unit 215 can be directly from base station 105 Collect detection information;In downlink transmission, detection information collector unit 215 can from each terminal device 110-1 to 110-J obtains detection information, correspondingly can report respective detection information by each terminal device 110-1 to 110-J.

In one example, other than carrying out terminal device grouping, pretreatment unit 205 can also carry out initial money Initial data detection scheme is distributed and is determined in source, being specifically described with reference to Fig. 5 A to Fig. 6 as after.

One or more of pretreatment unit 205, updating unit 210 and detection information collector unit 215 for example can be with It is realized by processing circuit.Herein, processing circuit can refer to the digital circuitry for executing function in computing systems, simulation The various realizations of circuit system or mixed signal (analog- and digital- combination) circuit system.Processing element may include for example all Circuit, the part of separate processor core or circuit as integrated circuit (IC), ASIC (application-specific integrated circuit), entire place Manage device core, individual processor, such as programmable hardware device of field programmable gate array (FPGA), and/or including more The system of a processor.

It is appreciated that electronic equipment 200 can be realized with chip-scale, or can also by including other external components And it is realized with device level.For example, electronic equipment 200 can be worked as complete machine as communication equipment.

It should also be understood that above-mentioned each unit is only the logic functional block divided according to the concrete function that it is realized, and It is not intended to limitation concrete implementation mode.In actual implementation, above-mentioned each functional unit can be implemented as independent physics Entity, or can also be realized by single entity (for example, processor (CPU or DSP etc.), integrated circuit etc.).

Below in conjunction with Fig. 3 A to Fig. 9 come be described in detail electronic equipment 200 and its each unit execute it is specific illustrative Operation.

Fig. 3 A to Fig. 4 B are combined to describe the exemplary operations being grouped about terminal device first.In one embodiment, terminal Facility information may include channel state information, which includes such as channel gain.Pretreatment unit 205 is held Capable terminal device grouping may include according to channel state information by terminal device (such as the terminal device in Figure 1A and 1B 110-1 to 110-J) it is included into grouping.According to one embodiment, terminal device is included into so that same by grouping according to channel state information The channel gain otherness between terminal device in one grouping is big as possible or is more than predetermined threshold." channel gain otherness is big In predetermined threshold " in threshold value can be predetermined concrete numerical value, can also be by certain objective embodied of algorithm Channel gain otherness degree.In other words, if grouping algorithm objectively make its grouping can cause packetized memory letter The road gain inequality opposite sex is more than caused channel gain otherness when random grouping, then the algorithm of this grouping be considered as so that Channel gain otherness is more than predetermined threshold.

Fig. 3 A show a kind of mode that can be used for terminal device grouping.Mode field multiple access system in Fig. 3 A uses Packet mode keep the channel gain of the terminal device in same grouping close as possible, in this way, the terminal between different grouping is set It is standby that generally there is larger channel gain difference, but the terminal device within same grouping has smaller channel gain difference. As shown in Figure 3A, it is included into the same grouping close to 6 larger terminal devices of the channel gain of base station, from the letter of base station farther out 6 smaller terminal devices of road gain are included into another grouping.Fig. 3 B show the terminal device according to the embodiment of the present disclosure The way of example of grouping.The packet mode that mode field multiple access system in Fig. 3 B uses makes the terminal device in same grouping Channel gain otherness it is big as possible, the channel of the terminal device in the namely same grouping big as possible of channel gain otherness increases Benefit has diversity (diversity) big as possible.In order to keep the channel gain otherness of the terminal device in same grouping most Amount is big, and the variance of the channel gain of the terminal device in the grouping can be required big as possible.In one example, the end in grouping The big Mr. Yu's predetermined threshold of variance of the channel gain of end equipment, the i.e. variance are greatly to a certain extent.As shown in Figure 3B, 3 larger terminal devices of channel gain close to base station and the 3 terminal device quilts smaller from the channel gain of base station farther out It is included into the same grouping, remaining is included into another grouping close to base station and from 6 terminal devices in total of base station farther out. Compared with the packet mode of Fig. 3 A, the example packet mode of Fig. 3 B makes the channel gain of the terminal device in same grouping poor Anisotropic larger (i.e. channel gain has larger variance or diversity), therefore be the preferred packet mode of the disclosure.Same In the case that the channel gain otherness of terminal device in grouping is larger, based on serial sensing algorithm to the number in same grouping Detection error can be reduced according to being detected or decoding so that compared with using parallel detection algorithm merely, detection can be reduced Or decoded complexity.

In one example, system resource is correspondingly assigned to each grouping, and one after terminal device grouping As for be assigned to the resource requirement of the resource that is individually grouped more than single terminal equipment and less than all terminal devices in grouping Resource requirement.Above-mentioned terminal device is grouped the terminal device same group of resource of multiplexing so that same grouping, such as at same point (such as SCMA) technology is accessed by using mode field multiple access in group, and it is different so that the terminal device of different grouping uses Resource, i.e., resource between different groups is using being mutually orthogonal.Using SCMA technologies, since SCMA is a kind of Synchronous coding technique needs terminal device to keep system synchronization.Therefore in such a case it is possible to the end that the synchronous condition will be met End equipment is included into same grouping.

It should be noted that terminal device information may include the channel state information for corresponding respectively to uplink downlink, example Such as correspond to the channel gain of uplink downlink.It can be according to the channel state information of uplink downlink for uplink downlink point Not carry out terminal device grouping, and by corresponding terminal device be respectively applied to downlink data transmission.However, this Field technology personnel can be directed to it should be clear that in the case where uplink downlink channel meets reciprocity (reciprocity) Only uplink or only downlink progress terminal device grouping, and terminal device group result is applied to uplink data Both transmission and downlink transmission are grouped relevant computational load to mitigate with terminal device.The allusion quotation of this kind of situation Type scene is time division duplex (TDD) communication system.It is close enough in uplink and downlink frequency band in frequency division duplex (FDD) communication system In the case of it is also assumed that uplink downlink channel substantially meets reciprocity.Uplink is transmitted, base station for example can be with Channel estimation is carried out based on the uplink reference sent from each terminal device, to obtain the uplink letter of each terminal device Channel state information;For downlink transmission, each terminal device for example can based on the downlink reference sent from base station into Row channel estimation, to obtain respective downlink channel status information and be fed back to base station.

According to some embodiments, it includes at least one of following that terminal device, which is included into grouping,:1) by terminal device base It is ranked up in channel gain, each terminal device is included into different grouping successively;2) terminal device is matched based on channel gain Into packet configuration template, the channel gain of terminal device number and terminal device wherein in packet configuration template designated packet It is horizontal.The exemplary operations for describing to be grouped according to the terminal device of the embodiment of the present disclosure below in conjunction with Fig. 4 A and Fig. 4 B.

Fig. 4 A show a kind of exemplary operations being grouped according to the terminal device of the embodiment of the present disclosure.In Figure 4 A, in order to J terminal device 410_1 to 410_J is included into G grouping 420_1 to 420_G, these terminal devices are based on channel first Gain increasing or decreasing is ranked up (being ranked up by the sequence that channel gain successively decreases in this example embodiment).Then, it will sort Terminal device afterwards is included into or is assigned to successively each grouping.For example, in the first round distributes, terminal device 410_1 can be by Grouping 420_2 can be included by being included into grouping 420_1, terminal device 410_2, and so on, until terminal device 410_G can be with It is included into grouping 420_G.Then, in the second wheel distribution, the G terminal device since terminal device 410_ (G+1) also may be used To be included into this G grouping successively.The distribution for carrying out next round later, until all terminal devices are all included into grouping.To divide For group 410_1, it will be understood that the terminal device for being finally included into the grouping is 410_1,410_ (G+1), 410_ (2G+1) etc. Deng.In this way, terminal device similar in channel gain is assigned in different grouping as much as possible, so that same point Channel gain otherness between terminal device in group is big as possible.

In another exemplary operations of terminal device grouping, preset point can be stored in electronic equipment 200 Group configuration template, which can be to that can be included into the terminal device number of grouping and the channel of corresponding terminal equipment Gain level is provided.In this example embodiment, the process for terminal device being included into grouping is actually according to packet configuration template The terminal device for meeting channel gain level of specified quantity is matched in the packet configuration template, to instantiation one or The process of multiple terminal devices grouping.Fig. 4 B show the packet configuration for terminal device grouping according to the embodiment of the present disclosure Template example.As shown in Figure 4 B, packet configuration template 1, which specifies grouping, can have 8 terminal devices, wherein 2 terminals are set It is the channel gains of 8,2 terminal devices is 4 that standby channel gain, which is the channel gain of 12,2 terminal devices, remaining 2 end The channel gain of end equipment is 1.Similarly, packet configuration template 2, which specifies grouping, can have 6 terminal devices, wherein 3 The channel gain of terminal device is 10, and the channel gain of remaining 3 terminal device is 2.When carrying out terminal device grouping, such as For there is the case where 40 terminal devices in system, there may be 24 terminal devices for meeting channel gain level to be matched according to grouping It sets template 1 and is instantiated as 3 groupings, may have 12 terminal devices for meeting channel gain level according to packet configuration template 2 are instantiated as 2 groupings, remaining 8 terminal device can be included into individual grouping due to channel gain mismatch.When So, in other examples, remaining above-mentioned 8 terminal device can also be instantiated as point according to other packet configuration template Group.

It is noted that the terminal device number in grouping is bigger, the number of resources of the grouping is accordingly more, then detection complexity Bigger, vice versa;The channel gain otherness of terminal device is bigger in grouping, then detection performance is better, and vice versa.Cause This needs to consider different detection demands when being pre-configured with interblock interference template, can pass through the terminal device number in grouping The interblock interference template for meeting detection demand is configured with channel gain otherness.

It is also pointed out that the above-mentioned channel yield value in packet configuration template can be the absolute value of channel gain, It can also be normalized value.Moreover, during terminal device is matched to packet configuration template based on channel gain, it can Not require the channel gain of terminal device identical with the channel gain specified in packet configuration template, but the two is one Matching in fixed tolerance.In this way, each channel gain in packet configuration template can be that a channel increases The range of benefit, falling into the channel gain within the scope of this can be matched on the corresponding position of packet configuration template.For example, for dividing Group configuration template 2, the channel gains of 6 terminal devices of actual match to the template can be [10.9,9.8,9.7,2.5, 2.0,1.9]。

Terminal device is included into the channel being grouped between can making the terminal device in same grouping in the above manner The gain inequality opposite sex is big as possible or at least more than predetermined threshold.It should be appreciated that being merely exemplary with upper type, people in the art Member is contemplated that other packet modes to realize essentially identical effect.For example, be included into grouping process by terminal device, it can Think that each grouping is divided into an initial terminal equipment first, and then adds with the channel gain difference of initial terminal equipment most Big terminal device.In one embodiment, it is following that can define the channel gain difference between two terminal devices di,j

Wherein, hiIndicate the channel gain of i-th of terminal device, di,jIndicate the letter between ith and jth terminal device Road gain difference.According to packet count G, it is randomized into a terminal device U one by one for each grouping firstg, g=1,2 ..., G, As initial terminal equipment.Then, it is that each grouping selects a terminal device to be added one by one so that the end to be added The channel gain difference of end equipment and the initial terminal equipment for being divided into the grouping is maximum, i.e. arg maxi di,g.Each to divide Group is added to after selected terminal device, repeats the selection and adding procedure, i.e., selects every time and add and be divided into point The maximum terminal device of channel gain difference of the initial terminal equipment of group, until all terminal devices are all included into grouping.

As noted, electronic equipment 200 (such as passing through pretreatment unit 205) can be additionally configured to determine initial Data detection scheme.Other than exemplary method below, those skilled in the art can also come in any suitable manner Determine data detection scheme.

In one embodiment, determine that data detection scheme includes being classified to the terminal device in grouping so that extremely A few rank includes two or more terminal devices.According to classification results, the terminal device of different stage is by serially examining Method of determining and calculating is detected, two or more terminal devices of same rank are detected by parallel detection algorithm.At one In exemplary embodiment, it includes that terminal device is included into phase according to channel gain height to carry out classification to the terminal device in grouping Rank is answered, the detection ordering of the data flow of the terminal device in rank corresponding with higher channel gain is more forward.For example, having The terminal device of higher channel gain is included into the more forward rank of detection ordering, the terminal device quilt with moderate channel gain It is included into detection ordering rank placed in the middle, and the terminal device with relatively low channel gain is included into the grade of detection ordering more rearward Not.In this way, the data manifold for the terminal device that can be differed greatly to channel gain by serial sensing algorithm at Different stage progress serial sensing, and the data flow of the terminal device similar in parallel detection algorithm parallel detection channel gain.

As noted earlier, in mode field multiple access system, number of resources and terminal device number are bigger, then parallel inspection The complexity of method of determining and calculating is higher.In view of the complexity of serial sensing algorithm can be less than parallel detection algorithm, therefore in terminal On the basis of device packets, in order to further decrease detection complexity and the advantages of retain parallel detection better performances, one can Capable way of example can be as follows:Terminal device in grouping is classified, it may include two to make one or more ranks Or more terminal device, and the terminal device of different stage can be detected by serial sensing algorithm, same rank Two or more terminal devices can be detected by parallel detection algorithm.In this way, obtaining a kind of based on serial sensing The data detection scheme of algorithm, by terminal device be grouped in each rank be integrally detected as serial sensing object, will Each terminal device in single rank is detected as parallel detection object.

Channel gain otherness between the terminal device that aforementioned groupings mode makes in same grouping is big as possible or big In the case of predetermined threshold, terminal device is included into appropriate level according to channel gain height, serial sensing algorithm may make to have There is lower detection error, so that (including being combined with serial sensing algorithm and parallel detection based on serial sensing algorithm and calculating Method) detection algorithm can take into account both complexity and detection error simultaneously.

Above-mentioned data detection scheme can be adapted for both uplink data transmission and downlink transmission.For Uplink data transmission can be executed the data detection scheme by base station;It, can be by each end for downlink transmission End equipment executes the data detection scheme.

Specifically, for uplink data transmission, can the data based on serial sensing algorithm be executed by base station and examined Detections at different levels in survey scheme.For example, being detected for the first order, which can receive each terminal device in specific cluster The signal by mode field multiple access technique (such as SCMA) multiple connection be used as input, and by parallel detection algorithm (such as MPA it) detected the signal of the terminal device of first level from organizing.In first order detection, from rank (i.e. second thereafter Rank, third level etc.) the signal of terminal device be considered as interference or noise, and the number of the terminal device to first level Parallel detection is carried out according to stream.Second level detection can be carried out later, wherein will be subtracted from above-mentioned received signal wherein with The input that the corresponding part of signal of the other terminal device of level-one is detected as the second level, and detected by parallel detection algorithm The signal of the terminal device of second level in group.Similarly, in the second level is detected, from rank (the i.e. third level thereafter Not, fourth level etc.) the signal of terminal device be considered as interference or noise, and data of the terminal device to second level Stream carries out parallel detection.Later, the detection for similarly carrying out the third level, fourth stage etc., until complete the detections of all classifications from And it detected the signal of the terminal devices at different levels from organizing.It may be noted that the input of first order detection can receive signal, But from being detected the second level, need to subtract the corresponding portion of the signal of terminal device wherein with prior level in signal from receiving It is allocated as the input for detections at different levels.In a preferable example, the larger terminal device of channel gain is included into first level, even if There are the other interference of following stage, first order detection remains to complete with higher accuracy, to avoid error from conducting to rank thereafter Detection, step by step in this way, whole decoding rate can be improved.

For downlink transmission, it can be executed by the terminal devices at different levels of specific cluster and be based on serial sensing The detection of rank some or all of in the data detection scheme of algorithm.All grades are executed with base station in uplink data transmission Other detection is different, and in downlink transmission, terminal devices at different levels can execute the detection based on serial sensing Scheme detection only up to corresponding with its rank.For example, the terminal device of first level can only execute first order detection, Wherein terminal device can receive from base station be sent to each terminal device in specific cluster by mode field multiple access technique The signal of (such as SCMA) multiple connection detects to be sent to first level as input by parallel detection algorithm (such as MPA) Terminal device itself signal.The terminal device of second level needs to execute the first order and second level detection, the wherein first order The operation of detection is similar to the terminal device of first level.In the second level is detected, the terminal device of second level can will be from Subtract what the corresponding part of the signal of the terminal device wherein with first level was detected as the second level in above-mentioned received signal Input, and the signal for the terminal device for detecting to be sent to second level by parallel detection algorithm.The terminal of third level is set The standby detection for needing execution first to the third level, the terminal device of fourth level need to execute first to fourth grade of detection, with This analogizes, and the terminal device of last rank needs to execute the detection of all ranks, can just detect to be sent to appropriate level The signal of terminal device.It may be noted that the input of first order detection can receive signal, but from being detected the second level, need From receiving the input for subtracting the corresponding part of the signal of terminal device wherein with prior level in signal as detections at different levels.

In one example, it is based on serial sensing algorithm (such as SIC) to be determined for the terminal device in being individually grouped Data detection scheme, can by each terminal device according to channel gain height be included into several ranks.Since serial sensing is calculated The characteristics of method is the terminal device (such as channel gain is higher, received signal to noise ratio is higher) that first detection is easier to detection, because This, the detection ordering of the data flow of the terminal device in rank corresponding with higher channel gain is more forward.In one example, Channel gain of the difference in certain threshold range can be divided into a rank.For example, for the channel of 6 terminal devices Gain [10.9,9.8,9.7,2.5,2.0,1.9], in the case of a kind of, it is assumed that threshold range 2, then channel gain [10.9, 9.8,9.7] since maximum difference is that 10.9-9.7=1.2 (< 2) may be considered that a corresponding rank;Similarly, channel increases Beneficial [2.5,2.0,1.9] is that 2.5-1.9=0.6 (< 2) may be considered that another corresponding rank due to maximum difference.Later, Preceding 3 terminal devices can be included into first level, rear three terminal devices are included into second level.In another case, false If threshold range is 1, then channel gain 10.9 can individually be considered a corresponding rank, because of 10.9-9.8=1.1 (> 1);Channel gain [9.8,9.7] may be considered that a corresponding rank, and channel gain [2.5,2.0,1.9] may be considered that pair Answer another rank.

The detection process of sample data detection scheme according to the embodiment of the present disclosure is described below in conjunction with Fig. 5 A to Fig. 5 D, Middle Fig. 5 A to Fig. 5 C are the examples being detected to uplink data transmission, and Fig. 5 D are examined to downlink transmission The example of survey.Some embodiments of the present disclosure can be related to a kind of serial sensing receiver, which can be by It is configured to execute the detection process of data detection scheme.For example, it includes at least two that the serial sensing receiver, which can be configured as, The parallel detection unit of grade, for carrying out classification decoding to the mode field multiple access received access signal, wherein simultaneously per level-one Row detection unit supports parallel multi-terminal equipment Data Detection, is used as in the decoding output of the other parallel detection unit of prime The known disturbances of rank parallel detection unit are to eliminate from receiving in signal afterwards, and in the other parallel detection unit of prime The resource orthogonality of target data stream is better than the resource orthogonality in the target data stream of the other parallel detection unit of rear class.One In a example, the access of mode field multiple access includes SCMA or PDMA.According to the electronic equipment for wireless communication system of the disclosure It may include above-mentioned serial sensing receiver.

Fig. 5 A show the detection of the sample data detection scheme based on serial sensing algorithm according to the embodiment of the present disclosure Processing.As shown in Figure 5A, for 6 terminal devices 1 to 6 in specific cluster in mode field access system, it is assumed that terminal device 1 It is divided into first level with 2, terminal device 3 and 4 is divided into second level, and terminal device 5 and 6 is divided into third level.For The data of this 6 terminal devices, by after multiple connection, are received by wireless transmission in receiving terminal by mode field access mode, Receiving signal can be expressed asWherein hj indicates the channel matrix of terminal device j, xj Indicate that the data for terminal device j, n indicate that noise, diag indicate to be configured to diagonal matrix with the vector in bracket.For connecing Collection of letters y, the data detection scheme based on serial sensing algorithm can detect the data for each terminal device step by step.First It is first order detection (such as can be executed by the first order parallel detection unit of serial sensing receiver), for input signal y, Using the first level of terminal device as serial sensing object, and decoded for terminal device 1 and 2 by parallel detection algorithm Data x1, x2;(such as being executed by second level parallel detection unit) is detected followed by the second level, is subtracted from input signal y Go to part corresponding with data x1, x2 decoded as input, using the second level of terminal device as serial sensing pair As, and decode by parallel detection algorithm data x3, x4 for terminal device 3 and 4;It (such as can for third level detection To be executed by third level parallel detection unit), it is subtracted from the input signal of upper level corresponding with data x3, x4 decoded Part using the third level of terminal device as serial sensing object, and decodes use as input by parallel detection algorithm In data x5, x6 of terminal device 5 and 6.In uplink data transmission, base station can be decoded by aforesaid operations and is used for The data of terminal device 1 to 6.

According to a kind of embodiment, workable serial sensing algorithm for example can be successive interference cancellation (SIC) algorithm, Workable parallel detection algorithm for example can be MPA algorithms.In this case, still can be used above-mentioned serial sensing receiver into Row detection process, and the serial sensing receiver can be implemented as SIC receivers, and parallel detection unit can be implemented as MPA Unit.Fig. 5 B show the detection process of the sample data detection scheme based on SIC according to the embodiment of the present disclosure.In addition to limiting Except specific algorithm, which can be similar with Fig. 5 A.The data detection scheme can for example be used for SCMA systems.Such as Fig. 5 B It is shown, 6 terminal devices 1 to 6 of 3 ranks are still divided into, the data for this 6 terminal devices are answered by SCMA After connecing, it is received in receiving terminal by wireless transmission, is expressed as y.For receiving signal y, the number based on serial sensing algorithm SIC The data for each terminal device can be detected step by step according to detection scheme.It is that first order detection (such as can be by SIC first The first order MPA units of receiver execute), for input signal y, object is detected using the first level of terminal device as SIC, Data x1, x2 for terminal device 1 and 2 are decoded by MPA, wherein MPA decodings may be used and terminal device 1 and 2 pairs The factor graph F1 (taking out what row corresponding with terminal device 1 and 2 were formed i.e. from system factor figure) answered, the institute on the right side of Fig. 5 B Show;(such as can be executed by second level MPA units) is detected followed by the second level, subtracts and has decoded from input signal y Object is detected in the corresponding part of data x1, x2 as input, using the second level of terminal device as SIC, is decoded by MPA For data x3, x4 of terminal device 3 and 4, factor graph F2 corresponding with terminal device 3 and 4 may be used in wherein MPA decodings (taking out what row corresponding with terminal device 3 and 4 were formed i.e. from system factor figure), as shown in the right sides Fig. 5 B;For the third level It detects (such as can be executed by third level MPA units), from data x3, x4 that the input signal of upper level subtracts and has decoded Object is detected in corresponding part as input, using the third level of terminal device as SIC, is decoded for terminal by MPA Factor graph F3 corresponding with terminal device 5 and 6 may be used (i.e. from system in the decoding of data x5, x6 of equipment 5 and 6, wherein MPA Take out what row corresponding with terminal device 5 and 6 were formed in factor graph), as shown in the right sides Fig. 5 B.As noted earlier, for SCMA systems, detection complexity on each resource factor node withIt is proportional.Such as factor graph F1 to the F3 institutes in Fig. 5 B Show, carrying out that classification actually reduces to the terminal device in grouping may on single resource factor node in each MPA detection The terminal device number d of overlappingf, therefore the complexity of each MPA detections can be reduced.

Fig. 5 C show the detection process of another sample data detection scheme based on SIC according to the embodiment of the present disclosure. Other than the terminal device 1 to 6 in group is divided into 2 ranks, the example of Fig. 5 C is similar with Fig. 5 B.As shown in Figure 5 C, terminal Equipment 1 and 2 is divided into first level, and terminal device 3 to 6 is divided into second level.Data for this 6 terminal devices pass through SCMA is received in receiving terminal by wireless transmission by after multiple connection, is expressed as y.For receiving signal y, calculated based on serial sensing The data detection scheme of method SIC can detect the data for each terminal device step by step.It is first order detection first, for Input signal y detects object using the first level of terminal device as SIC, is decoded for terminal device 1 and 2 by MPA The decoding of data x1, x2, wherein MPA may be used on the right side of terminal device 1 and 2 corresponding factor graphs such as Fig. 5 C shown in (i.e. from being Take out what row corresponding with terminal device 1 and 2 were formed in system factor graph);It detects followed by the second level, is subtracted from input signal y Object is detected in part corresponding with data x1, x2 decoded as input, using the second level of terminal device as SIC, Data x3, x4, x5 and x6 for terminal device 3 to 6 are decoded by MPA, wherein MPA decodings may be used and terminal device 3 to 6 corresponding factor graphs (taking out what row corresponding with terminal device 3 to 6 were formed i.e. from system factor figure).With the feelings of Fig. 5 B Condition is similar, and above-mentioned SIC receivers can be used to execute for the detection process of Fig. 5 C, the difference is that can only pass through two-stage herein MPA units complete detection process, and the detection process of Fig. 5 B need to be completed by three-level MPA units.

Above-mentioned Fig. 5 A to 5C specifically describe the application example of the disclosure by taking uplink data transmission as an example.It should manage Solution transmits downlink data, which executes at base station and each terminal device respectively, in addition to data The channel of experience is different, other flows are all similar.The down link data of the disclosure is simply introduced by taking Fig. 5 D as an example below Detection.As shown in Figure 5 D, for 6 terminal devices 1 to 6 in specific cluster in mode field access system, it is assumed that terminal device 1 It is divided into first level with 2, terminal device 3 and 4 is divided into second level, and terminal device 5 and 6 is divided into third level.For The downlink data of this 6 terminal devices by mode field access mode by after multiple connection, by wireless transmission in receiving terminal i quilts It receives, receiving signal can be expressed asWherein hi indicates the channel square of terminal device i Battle array, xj indicate that the data for terminal device j, n indicate that noise, diag indicate to be configured to diagonal matrix with the vector in bracket. For the reception signal yi of terminal device i, the data detection scheme based on serial sensing algorithm can be detected step by step for each The data of terminal device.It is that first order detection (such as can be by the first order parallel detection unit of serial sensing receiver first Execute), for input signal yi, using the first level of terminal device as serial sensing object, and pass through parallel detection algorithm Decode data x1, x2 for terminal device 1 and 2;It (such as can be by second level parallel detection list followed by second level detection Member executes), part corresponding with data x1, x2 decoded is subtracted as input, by terminal device from input signal yi Second level decodes by parallel detection algorithm data x3, x4 for terminal device 3 and 4 as serial sensing object; (such as being executed by third level parallel detection unit) is detected for the third level, subtracts and has solved from the input signal of upper level The corresponding part of data x3, x4 that code goes out using the third level of terminal device as serial sensing object, and passes through as input Parallel detection algorithm decodes data x5, x6 for terminal device 5 and 6.In downlink transmission, terminal device 1 First order detection can be only executed with 2, terminal device 3 and 4 needs to execute the first order and second level detection, and terminal device 5 and 6 needs It executes the first order to the third level to detect, to decode the data for terminal device itself.It is appreciated that, it is assumed that modulation methods Formula is QPSK, i.e., the points in planisphere are M=4, then the complexity of the detection operation in Fig. 5 B can be with (41+41+41) have It closes, the complexity of the detection operation in Fig. 5 C can be with (41+42) related.For same modulation system and resource distribution mode, The complexity for only carrying out MPA can be with (43) in relation to (because in the entire factor graph being made of F1 to F3, each resource factor 3) the terminal device number being overlapped on node is that and the detection complexity for only carrying out serial sensing is minimum.As it can be seen that Fig. 5 B, 5C In sample data detection scheme parallel detection algorithm (such as MPA algorithms) and serial sensing algorithm (such as SIC) may be implemented The complexity of the compromise of algorithm is horizontal.It can also be seen that the number of levels in group is more according to Fig. 5 B, 5C, then detection complexity is got over It is small, but detection performance also can be reduced accordingly.Therefore, get up serial sensing algorithm and parallel detection algorithm combination to be detected calculation Method designs the compromise also for detection complexity and detection performance.

As noted, electronic equipment 200 (such as passing through pretreatment unit 205) can be additionally configured to carry out initial Resource allocation.Below in conjunction with Fig. 6 descriptions according to the example of resource allocation in the grouping of the embodiment of the present disclosure.In addition to the example it Outside, those skilled in the art can also carry out initial resource allocation in any suitable manner.

In one embodiment, in identified grouping resource allocation can make same rank terminal device data flow Between resource overlapping it is small as possible.Fig. 6 shows resource allocation in the grouping according to the embodiment of the present disclosure by taking SCMA systems as an example An example.Resource allocation in SCMA systems can be indicated by factor graph matrix F, wherein every in factor graph matrix F A line corresponds to a resource node, and each row correspond to a terminal device, and the i-th row jth column element is that 1 expression terminal device j is accounted for With resource i, the i-th row jth column element is that 0 expression terminal device j is not take up resource i.Factor graph matrix F in Fig. 6 corresponds to The example of detection algorithm in Fig. 5 B, F1, F2 and F3 take out two row of F respectively in order.In one example, it is still assumed that eventually End equipment 1 and 2 is divided into first level, and terminal device 3 and 4 is divided into second level, and terminal device 5 and 6 is divided into the third level Not.As shown in fig. 6, resource allocation makes the data flow of different terminal equipment account for respectively in each rank in grouping represented by F With different resources, i.e. resource is overlapped small as possible (being also minimum at this time).In another example, it is assumed that 3 to 6 quilt of terminal device It is divided into a rank, due to the resource requirement constraint (need number of resources be 2) of each terminal device, point represented by F at this time Resource allocation cannot make the data flow of terminal device 3 to 6 occupy different resources respectively in group, but can make resource overlapping as possible It is small.

Between the data flow of the terminal device of same rank resource overlapping as possible it is small actually reduce single resource because The terminal device number d being overlapped on child nodef, therefore the detection complexity of each MPA can be reduced.In one example, into In row group when resource allocation, it can preferentially make the resource overlapping between the data flow of the forward terminal device of rank small as possible, So that the detection performance of the forward terminal device of detection ordering is preferable, the error propagation problem in serial sensing is avoided. In another example, the data flow of the terminal device that detection ordering is forward in serial sensing can be made with detection ordering behind Other data flows resource it is orthogonal as possible, this similarly helps to be avoided the error propagation problem in serial sensing.

As noted above, in uplink data transmission and downlink transmission, data detection scheme is executed Equipment can be different.For uplink data transmission, can data detection scheme be executed by base station side.For downlink Data transmission can execute data detection scheme by terminal equipment side.Since base station can have more process resource, Decoding capability is stronger, can execute the detection of various complexities.In contrast, terminal device may generally have limited processing Resource, correspondingly decoding capability is weaker.Moreover, the decoding capability of different terminal equipment is also likely to be present difference, to be only capable of propping up Hold certain detection complexity.For example, some terminal devices can support parallel detection algorithm (such as MPA) and serial sensing to calculate Method (such as SIC), other terminal devices may only support serial sensing algorithm (such as SIC).Therefore, for downlink number According to transmission, electronic equipment 200 (such as pretreatment unit 205) when carrying out terminal device grouping and determining data detection scheme, It is contemplated that the decoding capability of each terminal device, carries out terminal device grouping, the classification in grouping and resource allocation appropriate.

In one embodiment, for the downlink transmission from base station to terminal device, in particular terminal device Decoding capability only support serial sensing algorithm in the case of, to the terminal device in grouping carry out classification may include to the spy Determine terminal device and distribute higher downlink transmitted power, and the particular terminal device is individually included into detection ordering and is leaned on as possible Preceding rank.

As previously described, it is however generally that, it may include by terminal device to carry out classification to the terminal device in grouping It is included into appropriate level according to channel gain height, and in general, the terminal in rank corresponding with higher channel gain is set The detection ordering of standby data flow is more forward.In view of the decoding capability of terminal device, in one example, data inspection is being determined When survey scheme, the terminal device of serial sensing algorithm (such as SIC) will can be only supported individually to be included into a rank, to the end End equipment need not execute parallel detection in rank, but only be decoded by serial sensing algorithm.It is suitable due in serial sensing The forward detection process of sequence is relatively easy, therefore in order to further decrease the terminal for only supporting serial sensing algorithm (such as SIC) It can be individually included into detection ordering rank forward as possible by the processing load of equipment.At this point, in view of serial sensing requirement The forward received signal strength of rank is higher, needs to distribute higher downlink transmitted power for the terminal device, to improve The received signal strength of the terminal device.

In one embodiment, for the downlink transmission from base station to terminal device, in particular terminal device Decoding capability only support serial sensing algorithm in the case of, it further includes that will only support serial sensing that terminal device, which is included into grouping, The terminal device of algorithm is included into same grouping, and the terminal device in the grouping is only detected by serial sensing algorithm.

In some cases, the decoding capability of terminal device can be defined according to the processing capacity of terminal device, handled The more strong then corresponding decoding capability of ability is higher;Vice versa.In some cases, it can also be wanted according to the decoding delay of business It asks to correct the decoding capability of terminal device, the decoding delay requirement the high, and decoding capability accordingly reduces;Vice versa.Terminal is set Standby decoding capability can have different representations, be two kinds of exemplary representations below, and those skilled in the art are contemplated that Other representations appropriate:

1) it is indicated with decoding capability indicator (decoding capability indicator).For example, can will solve Code ability is divided into 5 grades, indicates that 5 (or E) indicate decoding capability most with decoding capability indicator 1 to 5 (either A to E) Height, 1 (or A) can indicate that decoding capability is minimum.For another example decoding capability indicator 1 can be used to indicate that terminal device can It supports parallel detection algorithm (such as MPA, at this time terminal device can also support the serial sensing algorithm of such as SIC), uses solution Code capability indicator 0 indicates that terminal device only supports serial sensing algorithm (such as SIC).

2) it is indicated with specific numerical parameter.For example, the parameter can be used for decoded computing resource, example in terminal device Such as unit of GHz.More for decoded computing resource in terminal device, then corresponding decoding capability is stronger;Vice versa.

In one embodiment, terminal device can initially report the decoding capability of itself to base station (such as with RRC The form etc. of layer signaling), in order to electronic equipment 200 obtain and carry out terminal device grouping appropriate, the classification in grouping or Resource allocation.

In one embodiment, for downlink transmission, electronic equipment 200 (or detection information collector unit 215) detection information for obtaining downlink transmission from terminal device is can be configured as, is divided again to carry out terminal device At least one of during resource re-allocation and data detection scheme update in group, grouping.

Although it have been described that being grouped to terminal device, determining the pretreated of data detection scheme and resource allocation Various embodiments, it will be appreciated that, it is grouped, determines that the concrete mode of data detection scheme and resource allocation is not limited to these Embodiment, for example, can be determined using usual manner when pretreatment data detection scheme (such as using in group only comprising a grade Other parallel detection algorithm), resource allocation can be carried out or be carried out using usual manner at random, etc..

The specific illustrative of the execution of pretreatment unit 205 of electronic equipment 200 is described in detail above in association with Fig. 3 A to Fig. 6 Operation.Pretreatment unit 205 is carrying out terminal device grouping and initial resource allocation and initial data is being determined After detection scheme, need the notice of necessary corresponding information to each terminal device.For example, for from terminal device to base station Uplink data transmission, can notify corresponding resource allocation result to terminal device after having carried out resource allocation, eventually End equipment can carry out uplink data transmission according to the resource allocation result.For another example for from base station to terminal device Downlink transmission, can carried out terminal device grouping, resource allocation and determine data detection scheme in extremely After one item missing the institute in corresponding terminal device group result, resource allocation result and data detection scheme is notified to terminal device State at least one.Terminal device can receive down link data according to the resource allocation result, and according to data detection scheme In conjunction with the information of other-end equipment in a packet be detected.It should be noted that detailed above with respect to pretreatment unit 205 The terminal device carefully described is grouped, determines that the principle of data detection scheme and resource allocation and operation can be equally applicable to update The terminal device that unit 210 executes is grouped again, data detection scheme updates and resource re-allocation.

The specific illustrative operation that the updating unit 210 of electronic equipment 200 executes is described in detail below in conjunction with Fig. 7 to Fig. 9. In accordance with an embodiment of the present disclosure, as described above, updating unit 210 for example can be configured as the inspection based on data transmission Measurement information carries out at least one that terminal device is grouped, is grouped in interior resource re-allocation and data detection scheme update again.According to Embodiment of the disclosure, detection information may include such as detection error information and detection complexity information.Wireless communication system It can there are the bit error rate or retransmission rates (passing through the statistical information of the HARQ number of retransmissions being transmitted) to data decoding as unified It is required that.In one example, detection error information may include correspondingly error code when being detected by data detection scheme Rate level or retransmission rate.In the case where detection error information is unsatisfactory for the bit error rate or retransmission rate requires, it may be necessary to terminal Resource allocation and/or data detection scheme are updated in device packets, group.In some cases, especially for downlink chain The case where road is transmitted is (due to being decoded by the limited terminal device of processing capacity), it is also necessary to consider inspection when data decoding It is horizontal to survey complexity, and it is expected that actually detected complexity level can be less than scheduled detection complexity threshold value.In detection of complex Degree is higher than in the case of detection complexity threshold value, it is also possible to need to resource allocation in terminal device grouping, group and/or data inspection Survey scheme is updated.Detection complexity information may include detection complexity water when being detected by data detection scheme It is flat.In one example, detection complexity level can by decode data the time it takes (also referred to as decoding be delayed) come It indicates, decoding delay is excessive, may influence the spectrum efficiency of wireless communication system.As noted, for uplink downlink Data communicate the detection information that can have difference;Moreover, detection information include for particular terminal device detection information (such as The detection error information of the terminal device), for specific cluster detection information (such as in the grouping terminal device average inspection Survey control information) and for whole system detection information (such as in whole system terminal device average detected error letter Breath).

According to a kind of illustrative embodiments, other than the opportunity of execution or condition difference, what updating unit 210 executed Terminal device is grouped again, data detection scheme updates and the operation of resource re-allocation for example can be with pre- place described above in detail The terminal device grouping of the reason execution of unit 205 determines that the principle of data detection scheme and resource allocation and operation are essentially identical, Specific implementation procedure is not repeated in this.Opportunity about execution or condition, pretreatment unit 205 are first before data is transmitted Execute corresponding operation with beginning, and updating unit 210 is that update operative combination accordingly is executed in data transmission procedure.In number According in transmission process, updating unit 210 can execute the combination of update operation, update operation based on the detection information of data transmission Combination may include at least one that terminal device is grouped, is grouped in interior resource re-allocation and data detection scheme update again.With Lower combination Fig. 7 descriptions update operative combination according to the example of the updating unit 210 of the embodiment of the present disclosure.

As shown in fig. 7, update operative combination a can only include resource re-allocation operation in group.Such as the initial money in group In the case that source distribution does not make the resource overlapping in group between the data flow of the terminal device of same rank small as possible, it can hold Row update operative combination a.Operated by resource re-allocation in group, can make group in same rank terminal device data flow it Between resource overlapping reduce, and/or make data flow and the inspection for the terminal device that detection ordering is forward in serial sensing algorithm The resource overlapping of other data flows of survey sequence behind reduces.Update operative combination a can not be related to data detection scheme more New and terminal device is grouped again, only the resource allocation between the data flow of the terminal device in adjustment grouping.Fig. 9 shows basis Resource allocation conditions in example set before and after the execution update operative combination a of the embodiment of the present disclosure, wherein update operation Combination a has adjusted the resource allocation of the data flow of terminal device 2 in first level, to reduce the terminal device 1 with first level Data flow between resource overlapping.

As shown in fig. 7, update operative combination b may include data detection scheme update, and may be used also as the case may be It can include resource re-allocation in group.In one example, update operative combination b can more be newly arrived adjustment by data detection scheme Detection ordering of the data flow of each terminal device in grouping in serial sensing algorithm i.e. detection rank (such as to make each end End equipment is included into appropriate level according to channel gain height), and/or adjust the rank of serial sensing in serial sensing algorithm Number.Then, update operative combination b can also carry out resource re-allocation in group, so that the number of the terminal device of the interior same rank of group It is overlapped and reduces according to the resource between stream, and in some cases, it is also possible that detection ordering is forward in serial sensing algorithm The resource of other data flows of the data flow with detection ordering behind of terminal device Chong Die reduce.Adjust the grade of serial sensing Not Shuo example may refer to Fig. 5 B and Fig. 5 C example detection operation, reduce grouping in detection rank number of levels (for example, will Detection operation is adjusted to Fig. 5 C by Fig. 5 B) detection performance can be improved, increase the number of levels of detection rank in grouping (for example, will Detection operation is adjusted to Fig. 5 D by Fig. 5 C) detection complexity can be reduced.

As shown in fig. 7, it may include that terminal device is grouped, data detection scheme updates and group to update operative combination c again Interior resource re-allocation.In one example, update operative combination c can be again grouped by the terminal device in system, to increase The channel gain difference of terminal device in grouping.For example, in channel status (such as the channel of each terminal device over time Gain) change in the case of, it may be necessary to be grouped again.Then, update operative combination c can be by Data Detection side Detection ordering of the data flow for each terminal device that case is more newly arrived in adjustment grouping in serial sensing algorithm, and/or adjust The number of levels of serial sensing in whole serial sensing algorithm.Then, update operative combination c can also carry out resource re-allocation in group, It, and in some cases, can be with so that the resource overlapping in group between the data flow of the terminal device of same rank reduces Make the data flow with other data flows of detection ordering behind of the forward terminal device of detection ordering in serial sensing algorithm Resource overlapping reduce.

It is not difficult to find that the execution complexity of update operative combination a-c as shown in Figure 7 is incremented by successively.Update operation The complexity for combining a is minimum, can resource re-allocation only in execution group, and be grouped again without terminal device and Data Detection Scheme updates.In the case where being updated operative combination a, for uplink data transmission, base station can be to being divided again The terminal device for having matched resource notifies the newer mapping matrix V of the terminal device;For downlink transmission, base station can To notify the respective column in updating factor figure matrix F to each terminal device.Secondly the complexity for updating operative combination b, needs Terminal device is classified again in existing grouping so that the rank of at least one terminal device is adjusted, and is being classified It also needs to carry out resource allocation process after process.In the case where being updated operative combination b, uplink data is passed Defeated, the base station as data transmission recipient needs the detection ordering according to terminal device in classification situation update grouping again, And the newer mapping matrix V of the terminal device is notified to the terminal device for being reallocated resource;For downlink number According to transmission, base station each terminal device into grouping notifies its newer serial sensing rank and makes each terminal device updating factor figure Respective column in matrix F.For updating operative combination c, terminal device is grouped the terminal that can at least make in two groupings again Equipment occurs grouping and changes, or even is described referring for example to Fig. 4 A or Fig. 4 B it is also possible to being executed to whole terminal devices in system Division operation, and also need to after division operation that the grouping adjusted to be carried out to be classified and organize again interior resource weight in group Assigning process, therefore update the complexity highest of operative combination c.In the case where being updated operative combination c, for uplink Circuit-switched data is transmitted, and the base station as data transmission recipient needs to update grouping, classification situation and to being reallocated resource Terminal device notify the newer mapping matrix V of the terminal device;For downlink transmission, base station is set to each terminal It is standby to notify newer grouping, be classified situation and make each terminal device updating factor figure matrix F.

In one example, resource re-allocation operation in the group of the dotted line frame in Fig. 7 update operations b can not be executed.Example It such as,, can if meeting above-mentioned resource is overlapped condition small as possible after the number of levels of adjustment detection ordering or serial sensing Resource re-allocation in group need not be carried out.Only update can will be denoted as including the newer update operative combination of data detection scheme Operative combination b '.In the case where being updated operative combination b ', for uplink data transmission, only relate in base station root According to the detection ordering of terminal device in classification situation update grouping again;For downlink transmission, only relate to base station to Each terminal device notifies its newer serial sensing rank.Consider from signaling angle, compared with updating operative combination a, update behaviour The complexity for making combination b ' may be lower.Although the following contents of the disclosure does not lose usually more description update operative combination a- C, it should be understood that update operative combination b ' also will appear, status is same with other update operative combinations, and due to it Complexity is low, can have higher execution priority (such as in following figure 8 B, meeting detection performance in some cases In the case of combine b ' can prior to combination a execute).

In view of the complexity difference of different update operative combination, execution complexity can be controlled by different modes Update operative combination appropriate." complexity is appropriate " of so-called update operative combination, which refers to, passes through the update operative combination, can be with Meet the detection performance requirement of wireless communication system.In one example, can set the priority of update operative combination a-c according to It is secondary to successively decrease.That is, optimal first carry out resource re-allocation in group, second priority executes data detection scheme update, worst preferential execution Terminal device is grouped again.Correspondingly, be first carried out the update operative combination of high priority, and only higher priority more When new operative combination cannot be satisfied detection performance requirement, the update operative combination of next priority is just executed.In another example In, it is contemplated that the execution complexity for mainly updating operative combination c is excessively high, and different operation modes can be arranged in systems. For example, in mode 1, not allowing to execute operation c, can only executing operation a and b;Under pattern 2, allow to execute operation c, it can A-c is operated to execute.It can be selected between pattern 1 and pattern 2, and only can cannot be satisfied detection in pattern 1 Ability enabling mode 2 when can require.

In one embodiment, be based on detection information carry out terminal device be grouped again, resource re-allocation and Data Detection side At least one in case update can be periodic.In another embodiment, it is based on detection information and carries out terminal device weight At least one in grouping, resource re-allocation and data detection scheme update can be that event triggers, and trigger event can wrap It includes the detection performance (such as bit error rate, retransmission rate) that detection information is reflected and is unsatisfactory for performance requirement.For example, trigger event can be with It is unsatisfactory for the bit error rate including detection error or retransmission rate is required up to the first predetermined lasting time and/or detection complexity higher than detection Complexity threshold is up to the second predetermined lasting time.

Fig. 8 A and Fig. 8 B show according to the embodiment of the present disclosure by the period or execute update operation according to trigger event The flow chart of the exemplary method of combination.Since the wireless channel gain of each terminal device changes over time, it is thus possible to have Necessity is executed update operative combination appropriate by certain period.For example, it is contemplated that the complexity of different update operative combination Or priority is different, can be that different update operative combinations presets the corresponding execution period.For example, can be update behaviour Make combination b and presets cycle T1, cycle T is preset for update operative combination c2, wherein T1< T2, that is, update operative combination c Execution frequency be less than the execution frequency of update operative combination b.Fig. 8 A, which are shown, to be executed according to the embodiment of the present disclosure by the period Update the flow chart of the exemplary method 800 of operative combination.As shown in Figure 8 A, according to method 800, in frame 805, wireless communication system Normal operation.In frame 810, time T have passed through relative to carving when operation starts1.In frame 815, whether the elapsed time is judged Reach T2.If it is not, then going to frame 820 executes update operative combination b, and returns frame 805 continues system operation;If so, this It possibly is present at after the update operative combination b performed in frame 820 several times (depending on preset T1And T2Between pass System), then it goes to frame 825 and executes update operative combination c, and returns frame 805, continue system operation.Hereafter, it repeats the above process. Although the flow chart shows the example process for periodically executing update operative combination b and c, can also be in a similar manner Update operative combination a and b are periodically executed, operative combination a and c, or update operative combination a, b and c are updated.

(include for the detection information of particular terminal device, for specific point in the case where detection information can be obtained The detection information of group and the detection information for whole system), update behaviour appropriate can also be executed according to trigger event It combines.Detection information may include detection error information, and trigger event can for example be determined based on detection error information Detection performance be unsatisfactory for the bit error rate or retransmission rate requirement.In one example, trigger event can be that detection performance is unsatisfactory for The bit error rate or retransmission rate require to have reached the preset time.Fig. 8 B are shown according to the embodiment of the present disclosure according to triggering thing Part executes the flow chart of the exemplary method 850 of update operative combination.It should be noted that the trigger condition in Fig. 8 B can be directed to spy The detection performance of fixed grouping or whole system.As shown in Figure 8 B, variable B is initialized as 0 when starting, wherein variable B is used for It counts, indicates the number that update operative combination b is executed.In this example, it is preset to continuously perform update operative combination b One number, after variable B reaches pre-determined number, then by execute more complex update operative combination c be adjusted grouping, Resource allocation and data detection scheme.As shown in Figure 8 B, according to method 850, in frame 855, wireless communication system normal operation. Frame 860, (specific cluster or whole system) detection performance is unsatisfactory for the bit error rate or retransmission rate requires to have reached the predetermined time. Frame 865 judges to whether there is resource adjustment space in grouping.Packetized memory refers to for example being grouped in the case where resource adjustment space Exist between the data flow of the terminal device of interior same classification and be overlapped compared with large resource, and resource overlapping can be by adjusting subtracting It is small.The judgement of frame 865 if YES, then goes to frame 870 and executes update operative combination a, and returns frame 855 continues system operation; If NO, then it goes to frame 875 to execute update operative combination b and B values are added 1, reaches frame 880 later, continue system operation. Frame 880 and the operation of frame 885 and frame 855 are similar to the operation of frame 860.After the operation of frame 880 and frame 885, need in frame Whether 890 judgment variable B have reached pre-determined number.If it is not, then returns frame 875, the operation of repeat block 875 to 890.If It is then to go to frame 895, executes update operative combination c and B values are returned 0.Returns frame 880 later, system continue to run with.

Uplink is transmitted, Data Detection is executed by base station, therefore electronic equipment 200 (or its detection information is collected Unit 215) it is easier to obtain detection information.For downlink transmission, Data Detection is executed from each terminal device and to base It stands and reports detection information, therefore electronic equipment 200 (or its detection information collector unit 215) obtains detection information and may answer relatively It is miscellaneous.Therefore, method as shown in Figure 8 B is more likely to be appropriate for the scene of uplink transmission.But this method is equally applicable to The scene of downlink transmission.

According to one embodiment, detection information may include detection complexity information.Data detection scheme update can wrap Include the terminal device number of levels increased in the case where detection complexity is higher than detection complexity threshold value in terminal device grouping.

There is also other situations that update operative combination is executed according to trigger event.For example, detection information may include inspection Complexity information is surveyed, trigger event can be that for example detection complexity is higher than preset threshold value.In this case, in order to drop Low detection complexity can increase the number of levels of serial sensing in grouping, such as can be by the way that this operation is incorporated into update behaviour Make to realize in combination b.

It should be noted that the trigger condition for updating operation can also be directed to the detection performance of particular terminal device, for example, Trigger event can be particular terminal device detection performance be unsatisfactory for the bit error rate or retransmission rate require to have reached it is preset Time.Operation can also be updated for the specific terminal device in accordance with an embodiment of the present disclosure.For example, can lead to first Update operative combination a is crossed to adjust resource allocation in group.Secondly ranking in group, example can be adjusted by updating operative combination b Can be in Fig. 5 C by detection operation adjustment in the case of being unsatisfactory for requirement such as the detection performance of terminal device 3 in figure 5B Classification, improve detection performance to reduce number of levels.It can carry out terminal device again to be grouped again, to increase the particular terminal The channel gain otherness between terminal device where equipment in grouping, such as can particularly increase the particular terminal device It is grouped the channel gain otherness between interior other-end equipment with place.There are the feelings of 12 terminal devices in consideration system Condition, channel gain are ordered as [8,8,8,8,4,4,4,4,2,2,1,1] from high to low, be initially divided into two groups be [8,8,4,4, 2,1] big as possible to meet channel gain.Assuming that the detection for the terminal device that channel gain is 8 in one of grouping It can be unsatisfactory for bit error rate requirement, then need the grouping for adjusting the terminal device, increase in the grouping of the terminal device and place other The channel gain otherness of terminal device.It is adjusted, previous detection performance is unsatisfactory for where the terminal device of bit error rate requirement [8,8,2,2,1,1] are grouped into, another is grouped into [8,8,4,4,4,4].

According to the exemplary method of execution update operative combination as shown in Figure 8 B, it can be seen that in the detection to data flow In the case that error is unsatisfactory for the bit error rate or retransmission rate requirement, it may include executing at least one of to execute update operation:Into Row terminal device is grouped again, to increase the channel gain difference of the terminal device in grouping;Data detection scheme update is carried out, with Detection ordering of the data flow of each terminal device in adjustment grouping in serial sensing algorithm;Carry out data detection scheme more Newly, to adjust the number of levels of serial sensing in serial sensing algorithm;It is grouped interior resource re-allocation, so that serial sensing is calculated The resource of other data flows of the data flow of the forward terminal device of detection ordering with detection ordering behind is Chong Die in method reduces; And it is grouped interior resource re-allocation, so that the money between the data flow of the terminal device of same rank in same grouping Source overlapping reduces.According to one embodiment, detection information may include detection error information, and data detection scheme update can wrap Include the number of levels reduced in the case where system average detected error is unsatisfactory for average error rate requirement in grouping.In electronic equipment After 200 pretreatment unit 205 and updating unit 210 performs corresponding operation, electronic equipment 200 can tie some operations Fruit notifies to each terminal device, so that terminal device uses.For the uplink data transmission from terminal device to base station, After carrying out resource allocation and resource re-allocation, electronic equipment 200 can notify corresponding resource allocation result to terminal device.It is right In the downlink transmission from base station to terminal device, terminal device grouping and again grouping, resource allocation and again are being carried out Distribution and determine and update the data detection scheme at least one of after, electronic equipment 200 can notify corresponding to terminal device Terminal device grouping or weight group result, resource allocation or reassign in result and determination or newer data detection scheme At least one of.

As noted above, for downlink transmission, Data Detection is executed from each terminal device and to base station report Detection information (such as detection error information and/or detection complexity information), to execute update operative combination appropriate.Accordingly Ground, for the downlink transmission from base station to terminal device, electronic equipment 200 can be configured as to be obtained from terminal device It removes the detection information of uplink data transmission and is grouped again with carrying out terminal device, is grouped interior resource re-allocation and Data Detection side At least one of in case update.

Below in conjunction with Figure 10 descriptions according to another exemplary electronic device for wireless communication system of the embodiment of the present disclosure. In a sample application, electronic equipment 1000 can be used for downlink transmission (this of mode field multiple access system When, electronic equipment 1000 can also have uplink data transmission function).As shown in Figure 10, in one embodiment, electronics Equipment 1000 may include acquiring unit 1005.The operation or function that electronic equipment 1000 and its unit are realized is described below.

In one embodiment, acquiring unit 1005, which can be configured as, obtains terminal device group result, which sets Back-up group is the result is that determined for data transmission based on terminal device information.Wherein, the terminal device in same grouping Multiple data flows pass through mode field multiple access access carry out resource multiplex.Acquiring unit 1005 can be additionally configured to obtain terminal At least one of in equipment weight group result, resource re-allocation result and newer data detection scheme, the terminal device weight At least one in group result, resource re-allocation result and newer data detection scheme is the detection letter based on data transmission Breath and it is determined.Wherein, data detection scheme is used for reception of the electronic equipment based on serial sensing algorithm to receiving Data are decoded.

It is noted that in accordance with an embodiment of the present disclosure, above terminal device group result and terminal device divide again At least one in group result, resource re-allocation result and newer data detection scheme can be by 200 basis of electronic equipment What the embodiment of detailed description herein above generated.In one example, acquiring unit 1005 can obtain these knots from base station Fruit.

In addition, in one example, acquiring unit 1005 can be additionally configured to obtain initial Data Detection from base station Scheme.Base station determines that the data detection scheme includes:Terminal device in grouping is classified so that at least one rank packet Include two or more terminal devices.Wherein, the terminal device of different stage is detected by serial sensing algorithm, same to level-one Two or more other terminal devices are detected by parallel detection algorithm.

In one example, acquiring unit 1005 can be additionally configured to obtain resource allocation in initial grouping from base station As a result, the resource allocation result keeps the overlapping of the resource between the data flow of the terminal device of same rank small as possible.

According to further embodiments, electronic equipment 1000 can also include reporting unit 1015.Reporting unit 1015 can To be configured as to base station report detection information, the terminal device that carries out for base station be grouped again, be grouped interior resource re-allocation and At least one of in data detection scheme update.As described previously, detection information may include the detection error information (bit error rate Or retransmission rate) and detection complexity information.

In accordance with an embodiment of the present disclosure, electronic equipment 1000 can determine detection information by way of example below. In one embodiment, base station can send dedicated reference signal or pilot tone or any known sequence to electronic equipment 1000 Row.It is known for electronic equipment 1000 by reference signal or pilot tone or other sequences, therefore electronic equipment 1000 is receiving And after being detected to it, it may be determined that detection error information.In one example, reference signal or pilot tone or any known sequence Row can be for each terminal device all same.In another embodiment, electronic equipment 1000 can be according to actual downlink Link data transfer determines detection information, such as is estimated based on channel coding/decoding.In actual downlink transmission In the process, electronic equipment 1000 can carry out channel decoding.Since channel coding/decoding can detect or correct error bit, because The error that this electronic equipment 1000 can be detected with estimated data.Specifically, for error-detecging code, such as parity check code, cyclic redundancy Code etc. can detect the bit number that mistake occurs, so that it is determined that detection error;For error correcting code, such as LDPC, Turbo code, It can compare that channel is decoded to be output and input, with the error bit number corrected, to estimate the error of Data Detection. In the two embodiments, electronic equipment 1000 can also determine detection complexity information, such as be indicated by detection time delay.

It should be noted that reporting unit 1015 can be configured as by the period or be examined to base station report according to trigger condition Measurement information, or both have both at the same time.For periodic report, reporting unit 1015 can be every certain period to base station feedback Detection information, the period can be fixed value, such as 10ms.In SCMA systems, which can also be with mapping matrix or star The term of validity of seat figure is related, such as 1/4 etc. that the period is mapping matrix or the planisphere term of validity.For according to trigger condition Report, reporting unit 1015 can be more than for example certain threshold value (such as 10 in the bit error rate-3) when to base station feedback detection error.

According to one embodiment, reporting unit 1015 can be additionally configured to the decoding energy to base station report terminal device Power.Decoding capability about terminal device may refer to associated description above, no longer repeat herein.

In one embodiment, the electronic equipment 1000 in Figure 10 for example can be terminal device in Figure 1A and Figure 1B or A part for terminal device.Electronic equipment 1000 can be based on terminal device group result, resource allocation result and Data Detection In scheme at least one of come to receive data be decoded.Electronic equipment 1000 can also be grouped knot again based on terminal device In fruit, resource re-allocation result and newer data detection scheme at least one of come to receive data be decoded.Electronics is set Standby 1000 can execute any operation that terminal device carries out in previous embodiment.Electronic equipment 1000, which can be configured as, to be based on At least one in terminal device weight group result, resource re-allocation result and newer data detection scheme from base station to receiving To reception data be decoded.

One or more of acquiring unit 1005 and reporting unit 1015 can be realized by processing circuit.Herein, Processing circuit can refer to digital circuitry, analog circuitry system or the mixed signal (simulation for executing function in computing systems Sum number combinatorics on words) circuit system various realizations.Processing element may include that such as such as integrated circuit (IC), ASIC are (special With integrated circuit) as circuit, the part of separate processor core or circuit, entire processor core, individual processor, Such as the programmable hardware device of field programmable gate array (FPGA), and/or include the systems of multiple processors.

It is appreciated that electronic equipment 1000 can be realized with chip-scale, or can also by including other outside portions Part and realized with device level.For example, electronic equipment 1000 can be worked as complete machine as communication equipment.

It should also be understood that above-mentioned each unit is only the logic functional block divided according to the concrete function that it is realized, and It is not intended to limitation concrete implementation mode.In actual implementation, above-mentioned each functional unit can be implemented as independent physics Entity, or can also be realized by single entity (for example, processor (CPU or DSP etc.), integrated circuit etc.).

Embodiment of the disclosure further relates to another electronic equipment for wireless communication system, can be used for mode field The uplink data transmission of multiple access system is (at this point, the electronic equipment can also have downlink transmission work( Can).According to one embodiment, the electronic equipment can be configured as obtain resource allocation result and resource re-allocation as a result, To carry out uplink data transmission on corresponding transfer resource.

Figure 11 A show the exemplary method for communication according to the embodiment of the present disclosure.As shown in Figure 11 A, method 1100A May include that terminal device grouping (frame 1105) is carried out for data transmission based on terminal device information, wherein in same grouping Multiple data flows of terminal device are accessed by mode field multiple access and carry out resource multiplex.This method 1100A further includes being based on data The detection information of transmission carries out at least one that terminal device is grouped, is grouped in interior resource re-allocation and data detection scheme update again Item (frame 1110), wherein data detection scheme are used to be decoded to receiving data based on serial sensing algorithm.This method it is detailed Thin exemplary operations can refer to the description above for operation and function performed by electronic equipment 200, no longer repeat herein.

Figure 11 B show another exemplary method for communication according to the embodiment of the present disclosure.As shown in Figure 11 B, method 1100B may include obtaining terminal device group result (frame 1150), which believed based on terminal device Breath is determined for data transmission, wherein multiple data flows of the terminal device in same grouping are connect by mode field multiple access Enter to carry out resource multiplex.This method 1100B can also include obtaining terminal device weight group result, resource re-allocation result and more In new data detection scheme at least one of (frame 1155), terminal device weight group result, resource re-allocation result and more In new data detection scheme at least one of be, wherein Data Detection side determined based on the detection information of data transmission Case is for being decoded the reception data received based on serial sensing algorithm.The detailed example operation of this method can refer to Above for the description of operation and function performed by electronic equipment 1000, no longer repeat herein.

In order to further be conducive to understand the above-mentioned various operations according to the embodiment of the present disclosure, below with reference to Figure 12 A and Figure 12 B specifically describe the signalling interactive process between base station and terminal device.

Figure 12 A are shown between the base station and terminal device for uplink data transmission according to the embodiment of the present disclosure Example signalling interactive process.Specifically, in S1, each terminal device can be configured as to base station and send uplink reference letter Number, and can be additionally configured to base station report uplink transmission needs, such as with scheduling request SR or buffer state Report the form of BSR.Correspondingly, in S3, base station can be configured as the uplink reference letter received from each terminal device Number and uplink transmission needs, and channel estimation is carried out based on the uplink reference signals that receive, to obtain each end The uplink channel state information of end equipment.In S5, base station can be configured as based on terminal device information (such as uplink Path channels status information) for uplink data transmission progress terminal device grouping.In S7, base station, which can be configured as, to be directed to Uplink data transmission determines data detection scheme;The data detection scheme can be not limited to detection side described herein Case, in one example, the data detection scheme can be the data based on serial sensing algorithm according to the embodiment of the present disclosure Detection scheme.In S11, base station, which can be configured as, to carry out resource allocation in group and notifies resource allocation knot to each terminal device Fruit;Base station can carry out resource allocation in any type of group in S11, and in one example, base station can carry out in S11 According to resource allocation in the group of the embodiment of the present disclosure.Resource allocation result herein may include carrying out uplink convenient for terminal device The information of link data transfer.In the example using SCMA, resource allocation result herein includes target terminal equipment itself Mapping matrix V and planisphere.In S13, each terminal device, which can be configured as, obtains respective resource allocation result, in order to Send uplink data.

Then, in S15, each terminal device can be configured as and carry out data modulation, provided according to resource allocation result Source maps and carries out signal transmission.Then, in S17, base station, which can be configured as, receives the signal from each terminal device, and base Data detection scheme in S7 carries out data decoding.In S19, base station can be configured as to exist for uplink data transmission It is collected locally uplink detection information (such as including the information such as detection error and detection complexity).In S21, base station can be by It is configured to detection information or based on periodically executing the update operative combination (example appropriate according to the embodiment of the present disclosure Such as update operative combination a to c and b '), and lead to again to each terminal device in the case where having carried out resource re-allocation in group Know resource allocation result.In S23 and S25, each terminal device, which can be configured as, obtains respective resource allocation result, into line number Resource impact is carried out according to modulation, according to resource allocation result and carries out signal transmission.Later, in S27, base station can be configured To receive the signal from each terminal device, and data decoding is carried out based on the newer data detection scheme in S21.Hereafter, Base station and each terminal device can be configured as the process for executing S19 to S27.The update operative combination executed in S21 can be with It is combination any of a-c and b '.Resource allocation result herein still may include carrying out uplink convenient for terminal device The information of link data transfer.In the example using SCMA, in the case where executing any of combination a-c, base station needs The resource allocation result of notice, that is, newer mapping matrix V and planisphere.In the case where executing combination b ', due to not occurring Resource re-allocation in group, then can not need any notice (yet not needing S23 and later operation), the base station after S21 It need to be detected decoding by newer sequence.It is appreciated that in one example, base station can preferentially attempt update operation B ' is combined, other update operative combinations are just attempted in the case where being unsatisfactory for detection performance.For example, in the fig. 8b, it can be in step It attempts to execute update operative combination b ' before rapid 865.

It should be appreciated that Figure 12 A are only the Signalling exchange being used between the base station and terminal device of uplink data transmission The example of process, art technology thinks that other examples can be envisioned within the scope of this disclosure, such as increases known to other The step of, the step in Figure 11 is merged, is deleted, reversed order etc..

Figure 12 B are shown between the base station and terminal device for downlink transmission according to the embodiment of the present disclosure Example signalling interactive process.Specifically, in S2, base station can be configured as to each terminal device and send downlink reference letter Number.Correspondingly, in S4, each terminal device, which can be configured as, receives the downlink reference signal from base station, and is based on connecing The downlink reference signal received carries out channel estimation, to obtain respective downlink channel status information.In S6, respectively Terminal device can be configured as to base station report downlink channel status information and respective decoding capability.In S8, base station Can be configured as based on terminal device information (such as downlink channel status information) for downlink transmission into Row terminal device is grouped.In S10, base station can be configured as determines data detection scheme for downlink transmission;It should Data detection scheme can be not limited to detection scheme described herein, and in one example, which can be According to the data detection scheme based on serial sensing algorithm of the embodiment of the present disclosure.In S12, base station, which can be configured as, carries out group Interior resource allocation simultaneously notifies resource allocation result and data detection scheme to each terminal device.The notice that S12 is related to can only to Target terminal equipment notifies it to be transmitted the necessary information needed for Data Detection.For example, the notice to target terminal equipment can With including at least rank where target terminal equipment in same grouping and in the resource allocation result of the other terminal device of prime, i.e., The resource allocation result in the other terminal device of rear class is not notified, to reduce signaling consumption.In the inspection using Fig. 5 B or Fig. 5 C Can only include SIC where target terminal equipment to the notice of target terminal equipment in the case of survey scheme progress SCMA is decoded Rank and factor graph matrix F and planisphere in the other terminal device of prime, the division of SIC ranks, target terminal equipment itself Mapping matrix V (correspond to a certain row in F) and planisphere, wherein the target terminal equipment SIC of itself can be notified implicitly Rank, that is, the afterbody notified.Compared with the MPA of traditional SCMA decodings, the above method is not due to notifying at rear class other end The resource allocation result of end equipment, therefore signaling consumption reduces.Of course for convenient for subsequently updating the adjustment after operation, also may be used Notifying the factor graph matrix F of all terminals and the SIC ranks of planisphere and target terminal in entire grouping to target end End equipment.Base station can carry out resource allocation in any type of group in S12, and in one example, base station can be in S12 It carries out according to resource allocation in the group of the embodiment of the present disclosure.In S14, each terminal device, which can be configured as, obtains respective resource Allocation result and data detection scheme, in order to receive the decode down link data.

Then, in S16, base station can be configured as and carry out data modulation, carries out resource impact according to resource allocation result And carry out signal transmission.Then, in S18, each terminal device, which can be configured as, receives the signal from base station, and is based on S10 In data detection scheme carry out data decoding.In S20, each terminal device can be configured as to be examined to base station feedback downlink Measurement information (such as including the information such as detection error and detection complexity).Correspondingly, in S22, base station can be configured as collection Downlink detection information from each terminal device.In S24, base station can be configured as based on detection information or based on week Phase property is executed according to the update operative combination appropriate of the embodiment of the present disclosure (such as update operative combination a to c), and is being carried out Corresponding update operation (such as terminal device be grouped again, organize interior resource re-allocation, update the data in detection scheme at least one ) after, notify corresponding update result to each terminal device.Similar with S12, the notice that S24 is related to can be only to target terminal Equipment notifies it to be transmitted the necessary fresh information needed for Data Detection.For example, can be down to the notice of target terminal equipment Include less in same grouping rank where target terminal equipment and the other terminal device of prime update as a result, not notifying The update of the other terminal device of rear class is as a result, to reduce signaling consumption.It is carried out using the detection scheme of Fig. 5 B or Fig. 5 C In the case of SCMA is decoded, in the case where executing update operation a, the content of notice may include newer target terminal equipment Place SIC ranks and factor graph matrix F and planisphere in the other terminal device of prime.At this point, due to not being related to grade renewal, Therefore column of each terminal device in factor graph F is constant.It is involved in the case where executing update operative combination b or c Content of announcement can be identical with S12.In the case where executing update operative combination b ', then its place of target terminal need to be only notified Rank after grade renewal.In S26, each terminal device can be configured as acquisition update result.In S28, base station can by with Be set to and carry out data modulation, according to resource allocation result (if having updated resource allocation in S24, to be updated in S24 's;Otherwise be in S12 determine) carry out resource impact and carry out signal transmission.Later, in S30, each terminal device can be with Be configured as receiving the signal from base station, and based on data detection scheme (if having updated resource allocation in S24, for It is newer in S24;Otherwise it is to be determined in S10) carry out data decoding.Hereafter, base station and each terminal device can by with It is set to the process for executing S20 to S30.

It should be appreciated that Figure 12 B are only the Signalling exchange being used between the base station and terminal device of downlink transmission The example of process, art technology thinks that other examples can be envisioned within the scope of this disclosure, such as increases known to other The step of, the step in Figure 11 is merged, is deleted, reversed order etc..

Can be seen that in downlink data transmission from the example of Figure 12 A and Figure 12 B, base station and terminal device it Between signalling interactive process may exist difference.The difference essentially consists in:For downlink transmission, due to by each end End equipment executes Data Detection, therefore on the one hand, and base station needs that information (such as the terminal device needed for Data Detection is being determined The resource allocation of other-end equipment, data detection scheme needed for grouping, the decoding of target terminal equipment) after notify to each Terminal device;On the other hand, in order to enable base station to carry out determination appropriate/update operation, each terminal device is needed to base station Report its decoding capability and downlink detection information.

The implementation of the disclosure is described in detail in the context of cellular mobile communication framework above in association with Figure 1A to Figure 12 B The various aspects of example.However, the inventive concept of the disclosure is not limited to apply in cellular mobile communication framework.For example, can To apply the inventive concept in cognitive radio system, as the following specifically describes.

In general, cognitive radio system includes such as main system and subsystem.Main system is that have the legal frequency spectrum right to use System, such as radar system.Can there are multiple users, i.e. primary user in main system.Subsystem can be that no frequency spectrum uses It weighs and the system that the frequency spectrum is communicated can only be suitably used when main system does not use the frequency spectrum, such as commercial communication system System.Can there are multiple users, i.e., secondary user in subsystem.Alternatively, subsystem can also be to be with the frequency spectrum right to use System, but there is the priority level lower than main system using upper in frequency spectrum.For example, disposing new base station in operator to provide In the case of new demand servicing, having the service that base station provides as main system there is frequency spectrum to use priority.Another In the example of a alternative, main system is not present, each subsystem only has specific frequency spectrum the right to use of opportunistic, such as some Not yet being assigned to frequency spectrum resource that certain a kind of communication system uses by regulation can be as the unlicensed spectrum of various communication systems And it is used by opportunistic.

The communication of the communication mode requirement subsystem of this primary and secondary coexistence of systems can not adversely influence the communication of main system, Influence caused by the spectrum utilization of subsystem in other words can be controlled in (i.e. dry no more than it in the range of main system is allowed Disturb thresholding).In the case where ensureing the interference to main system in a certain range, available master can be distributed to multiple subsystems System resource.

It is exactly at present that the coverage information of main system is stored in database to a kind of most important mode of main system protection In.This database is also stored with the interference limit allowed by main system.Subsystem in the same area is starting with together It first has to access the database and submits the status information of subsystem before the frequency spectrum of main system in one region, such as position letter Breath, spectral emission template (spectrum emission mask), transmission bandwidth and carrier frequency etc..Then, database root Interference volume of the subsystem to main system is calculated according to the status information of subsystem, and according to the secondary system under the current state calculated Interference volume to main system unite to calculate the estimated usable spectrum resource of the subsystem under current state.

Wherein, spectral coordination device can be provided between database and subsystem, it is estimated for coordinating multiple subsystems pair The utilization of usable spectrum resource avoids the interference between subsystem to optimize frequency spectrum service efficiency.It is designed according to system, also may be used To realize both database and spectral coordination device by single entity.It, can be with it is appreciated that in the example of not main system Omitted data library and spectral coordination device is only set.

In one example, when there are when the communication of multiple secondary user equipmenies and one user equipment in subsystem (such as passing through the modes such as D2D (equipment is to equipment), V2V (vehicle-to-vehicle)) can be directed to multiple secondary user equipmenies and be used to one time Time user equipment of family equipment and/or one to multiple secondary user equipmenies communications applications according to disclosed method.At this In example, the data transmission of secondary user equipment can be controlled by spectral coordination device, and carry out according to the disclosure with point Group, resource allocation and the relevant processing of data detection scheme.For example, communication of multiple secondary user equipmenies to one user equipment Uplink data transmission is can correspond to, the communication of one user equipment to multiple secondary user equipmenies can correspond to downlink Link data transfer.Multiple secondary user equipmenies can totally use a certain range of unlicensed spectrum, and be divided into multiple groupings. Each grouping is assigned a subset of unlicensed spectrum so that the unlicensed spectrum between different grouping is orthogonal.Same grouping Multiple secondary user equipmenies be multiplexed the group unlicensed spectrum and by mode field multiple access access (such as SCMA, PDMA) led to Letter, to improve the availability of frequency spectrum.In this example embodiment, it can be realized according to the disclosure and grouping, resource by spectral coordination device Distribution and the relevant processing of data detection scheme, collect channel state information, the detection information etc. of time user equipment, and by phase Handling result is answered to notify to secondary user equipment.In this sense, a part of work(of above-mentioned base station may be implemented in spectral coordination device Can, but spectral coordination device only realizes control function not as the transmitting-receiving either side of data transmission.As data transmission Originating party or debit and in the sense that being detected to the data of multiple secondary user equipmenies, multiple secondary user equipmenies therein can To correspond to above-mentioned terminal device, one of those user equipment can correspond to above-mentioned base station, and they be required to by Spectral coordination device is given in the report such as channel state information, detection information, in order to which spectral coordination device realizes control function.

In one example, each terminal device in cell mobile communication systems can be used as time user to operate, from And subsystem is formed, for example to carry out opportunistic use to unauthorized or with relatively low use priority frequency spectrum.At this point, Database and spectral coordination device can be realized by base station.Figure 13 illustrates how disclosed method being applied to the cognition nothing The example of line telecommunication scene.In the example of Figure 13, it can for example be communicated by way of D2D between terminal device, Terminal device 131 to 136 has common communication object, i.e. terminal device 137.Correspondingly, can have from terminal device 131 It is passed to 136 to the data transmission of terminal device 137 and/or from terminal device 137 to the data of terminal device 131 to 136 It is defeated.Wherein, the communication of terminal device 131 to 136 to terminal device 137 can correspond to uplink data transmission, and terminal is set The communication of standby 137 to terminal device 131 to 136 can correspond to downlink transmission.Multiple terminal devices totally can be with Using a certain range of unauthorized or the frequency spectrum with relatively low use priority, and it is divided into multiple groupings, each grouping is assigned The a subset of the frequency spectrum so that the multiple terminal devices of the spectrum orthogonal between different grouping, same grouping are multiplexed the group Unlicensed spectrum is simultaneously communicated by mode field multiple access access (such as SCMA, PDMA).It in this example embodiment, can be by serving as frequency The base station 138 for composing coordinator is realized according to the disclosure and the relevant processing of grouping, resource allocation and data detection scheme, is received Collect channel state information, the detection information etc. of terminal device, and by respective handling result notice to terminal device.Base station herein 138 have in common that with aforementioned base station (such as 105) and realize control function, but base station 138 is not data transmission Receive and dispatch either side.In the originating party or debit and the meaning that is detected to the data of multi-terminal equipment as data transmission On, terminal device therein can correspond to aforementioned terminals equipment with 131-136, before terminal device 137 therein can correspond to Base station 105 is stated, they are required to report channel state information, detection information etc. to base station 138.

In other examples, what disclosed method can be applied to such as to meet IEEE P802.19.1a standards is The cognitive radio system of system and spectrum access system (Spectrum Access System, SAS) etc..Obtaining the disclosure In the case of teaching, those skilled in the art can be easily by the disclosure and grouping, resource allocation and data detection scheme Relevant processing is used in combination with these cognitive radio systems, without departing from the scope of the present disclosure.For example, the base in the disclosure The grouping stood, resource allocation function entity are embodied as the coexistence manager (coexistence in IEEE P802.19.1a standards Managers (CMs)), the data transmitting of terminal device or base station in the disclosure, detection function entity are embodied as IEEE Geographical location capability-object Geolocation Capability Object (GCO) in P802.19.1a standards.In another example The grouping of base station in the disclosure, resource allocation function entity are embodied as SAS resource management entities in SAS system, in the disclosure Terminal device or base station data transmitting, detection function entity be embodied as citizen's broadband wireless service in SAS system use Family (Citizens Broadband Radio Service Device, CBSD).It should be appreciated that in accordance with an embodiment of the present disclosure Storage medium and program product in machine-executable instruction can be additionally configured to execute it is opposite with above-mentioned apparatus embodiment The method answered, the content that therefore not described in detail here can refer to the description of previous corresponding position, be not repeated to be retouched herein It states.

Correspondingly, it is also included within this hair for carrying the storage medium of the above-mentioned program product including machine-executable instruction In bright disclosure.The storage medium includes but not limited to floppy disk, CD, magneto-optic disk, storage card, memory stick etc..

In addition, it should also be noted that above-mentioned series of processes and equipment can also be realized by software and/or firmware. In the case of being realized by software and/or firmware, from storage medium or network to the computer with specialized hardware structure, such as Shown in Figure 14 general purpose personal computer 1300 installation constitute the software program, the computer when being equipped with various programs, It is able to carry out various functions etc..Figure 14 is the individual for being shown as adoptable information processing equipment in embodiment of the disclosure The block diagram of the exemplary construction of computer.

In fig. 14, central processing unit (CPU) 1301 according to the program stored in read-only memory (ROM) 1302 or from The program that storage section 1308 is loaded into random access memory (RAM) 1303 executes various processing.In RAM 1303, also root The data required when CPU 1301 executes various processing etc. are stored according to needs.

CPU 1301, ROM 1302 and RAM 1303 are connected to each other via bus 1304.Input/output interface 1305 also connects It is connected to bus 1304.

Components described below is connected to input/output interface 1305:Importation 1306, including keyboard, mouse etc.;Output par, c 1307, including display, such as cathode-ray tube (CRT), liquid crystal display (LCD) etc. and loud speaker etc.;Storage section 1308, including hard disk etc.;With communications portion 1309, including network interface card such as LAN card, modem etc..Communications portion 1309 execute communication process via network such as internet.

As needed, driver 1310 is also connected to input/output interface 1305.The such as disk of detachable media 1311, CD, magneto-optic disk, semiconductor memory etc. are installed on driver 1310 as needed so that the computer read out Program is mounted to as needed in storage section 1308.

It is such as removable from network such as internet or storage medium in the case of series of processes above-mentioned by software realization Unload the program that the installation of medium 1311 constitutes software.

It will be appreciated by those skilled in the art that this storage medium be not limited to wherein to have program stored therein shown in Figure 14, Separately distribute with equipment to provide a user the detachable media 1311 of program.The example of detachable media 1311 includes magnetic Disk (including floppy disk (registered trademark)), CD (comprising compact disc read-only memory (CD-ROM) and digital versatile disc (DVD)), magneto-optic Disk (including mini-disk (MD) (registered trademark)) and semiconductor memory.Alternatively, storage medium can be ROM 1302, storage part Divide the hard disk etc. for including in 1308, wherein computer program stored, and is distributed to user together with the equipment comprising them.

The technology of the disclosure can be applied to various products.For example, the base station mentioned in the disclosure may be implemented as appointing The evolved node B (eNB), such as macro eNB and small eNB of what type.Small eNB can be to cover the cell smaller than macrocell ENB, such as pico- eNB, micro- eNB and family (femto) eNB.Instead, base station may be implemented as any other type Base station, such as NodeB and base transceiver station (Base Transceiver Station, BTS).Base station may include:It is configured The main body (also referred to as base station equipment) wirelessly communicated in order to control;And the one or more being arranged in the place different from main body is remote Journey satellite head end (Remote Radio Head, RRH).In addition, the various types of terminals being described below can be by temporary When or semi-persistent execute base station functions and as base station operation.

For example, the terminal device mentioned in the disclosure is also referred to as user equipment in some instances, may be implemented as moving Dynamic terminal (such as smart phone, tablet personal computer (PC), notebook type PC, portable game terminal, portable/encryption Dog type mobile router and digital camera device) or car-mounted terminal (such as car navigation device).User equipment can also quilt It is implemented as the terminal (also referred to as machine type communication (MTC) terminal) of Machine To Machine (M2M) communication.In addition, user sets Standby can be wireless communication module (such as integrated circuit including single wafer in each terminal in above-mentioned terminal Module).

Hereinafter with reference to Figure 15 to Figure 18 descriptions according to the application example of the disclosure.

[the application example about base station]

It should be appreciated that the disclosure in one word of base station have its common meaning whole ranges, and including at least by with In the part as wireless communication system or radio system in order to the wireless communications station of communication.The example of base station can example It is such as but not limited to following:Base station can be in base station transceiver (BTS) and base station controller (BSC) in gsm system One or both, can be one or both of radio network controller (RNC) and Node B in WCDMA system, can To be the eNB in LTE and LTE-Advanced systems, or can be corresponding network node in future communication systems (such as The gNB, etc. that may occur in 5G communication systems).Partial function in the base station of the disclosure can also be embodied as D2D, There is under M2M and V2V communication scenes to communicating the entity of control function, or be embodied as under cognitive radio communication scenes Play the entity of spectral coordination.

First applies example

Figure 15 is the first exemplary block diagram for showing to apply the illustrative arrangement of the eNB of the technology of present disclosure. ENB 1400 includes mutiple antennas 1410 and base station equipment 1420.Base station equipment 1420 and each antenna 1410 can be via RF Cable is connected to each other.In one implementation, eNB 1400 (or base station equipment 1420) herein can correspond to above-mentioned electricity Sub- equipment 200.

Each in antenna 1410 (is such as included in multiple-input and multiple-output including single or multiple antenna elements (MIMO) the mutiple antennas element in antenna), and send and receive wireless signal for base station equipment 1420.Such as Figure 15 institutes Show, eNB 1400 may include mutiple antennas 1410.For example, multiple frequency ranges that mutiple antennas 1410 can be used with eNB 1400 It is compatible.

Base station equipment 1420 includes controller 1421, memory 1422, network interface 1423 and wireless communication interface 1425。

Controller 1421 can be such as CPU or DSP, and operate the various functions of the higher level of base station equipment 1420. For example, controller 1421 generates packet according to the data in the signal handled by wireless communication interface 1425, and via Network interface 1423 transmits generated grouping.Controller 1421 can tie the data from multiple baseband processor It ties up to generate binding grouping, and transmits generated binding grouping.Controller 1421, which can have, executes logic control as follows Function:The control is such as wireless heterogeneous networks, radio bearer control, mobile management, admission control and scheduling.The control can To be executed in conjunction with neighbouring eNB or core net node.Memory 1422 includes RAM and ROM, and is stored by controller 1421 The program of execution and various types of control data (such as terminal list, transmission power data and scheduling data).

Network interface 1423 is the communication interface for base station equipment 1420 to be connected to core net 1424.Controller 1421 It can be communicated with core net node or other eNB via network interface 1423.In the case, eNB 1400 and core Heart net node or other eNB can be connected to each other by logic interfacing (such as S1 interfaces and X2 interface).Network interface 1423 Can also be wired communication interface or the wireless communication interface for wireless backhaul.If network interface 1423 is channel radio Believe interface, then compared with the frequency range used by wireless communication interface 1425, network interface 1423 can be used for using higher frequency band Wireless communication.

Wireless communication interface 1425 supports any cellular communication scheme (such as long term evolution (LTE) and LTE- are advanced), and And the wireless connection of the terminal in the cell of eNB 1400 is provided via antenna 1410.Wireless communication interface 1425 is logical Often may include such as base band (BB) processor 1426 and RF circuits 1427.BB processors 1426 can execute such as coding/solution Code, modulating/demodulating and multiplex/demultiplex, and execution level (such as L1, medium access control (MAC), wireless spread-spectrum technology (RLC) and Packet Data Convergence Protocol (PDCP)) various types of signal processings.Instead of controller 1421, BB processors 1426 can be with part or all of above-mentioned logic function.BB processors 1426 can be depositing for storage communication control program Reservoir, or it includes the module for being configured as executing the processor and interlock circuit of program to be.More new procedures can make BB processing The function of device 1426 changes.The module can be the card or blade being inserted into the slot of base station equipment 1420.Alternatively, the mould Block may be the chip on card or blade.Meanwhile RF circuits 1427 may include such as frequency mixer, filter and put Big device, and wireless signal is transmitted and received via antenna 1410.Although Figure 15 shows a RF circuit 1427 and a day The example that line 1410 connects, but the disclosure is not limited to the diagram, but a RF circuit 1427 can connect more simultaneously Antenna 1410.

As shown in figure 15, wireless communication interface 1425 may include multiple BB processors 1426.For example, multiple BB processors 1426 can be compatible with multiple frequency ranges that eNB 1400 is used.As shown in figure 15, wireless communication interface 1425 may include multiple RF circuits 1427.For example, multiple RF circuits 1427 can be compatible with mutiple antennas element.Although Figure 14 shows wherein to wirelessly communicate Interface 1425 includes the example of multiple BB processors 1426 and multiple RF circuits 1427, but wireless communication interface 1425 can also Including single BB processors 1426 or single RF circuits 1427.

Second applies example

Figure 16 is the second exemplary block diagram for showing to apply the illustrative arrangement of the eNB of the technology of present disclosure. ENB 1530 includes mutiple antennas 1540, base station equipment 1550 and RRH1560.RRH 1560 and each antenna 1540 can be via RF cables and be connected to each other.Base station equipment 1550 and RRH 1560 can each other connect via the high-speed line of such as fiber optic cable It connects.In one implementation, eNB 1530 (or base station equipment 1550) herein can correspond to above-mentioned electronic equipment 200.

Each in antenna 1540 (is such as included in multiple in mimo antenna including single or multiple antenna elements Antenna element) and send and receive wireless signal for RRH 1560.As shown in figure 15, eNB 1530 may include multiple days Line 1540.For example, mutiple antennas 1540 can be compatible with multiple frequency ranges that eNB 1530 is used.

Base station equipment 1550 include controller 1551, memory 1552, network interface 1553, wireless communication interface 1555 with And connecting interface 1557.Controller 1551, memory 1552 and network interface 1553 and the referring to Fig.1 controller 1421 of 5 descriptions, Memory 1422 and network interface 1423 are identical.

Wireless communication interface 1555 supports any cellular communication scheme (such as LTE and LTE- are advanced), and via RRH 1560 and antenna 1540 wireless communication of the terminal in sector corresponding with RRH 1560 is provided.Wireless communication interface 1555 may include usually such as BB processors 1556.In addition to BB processors 1556 are connected to RRH via connecting interface 1557 Except 1560 RF circuits 1564, BB processors 1556 are identical as the BB processors 1426 of referring to Fig.1 5 descriptions.As shown in figure 15, Wireless communication interface 1555 may include multiple BB processors 1556.For example, multiple BB processors 1556 can be with eNB 1530 The multiple frequency ranges compatibility used.Although Figure 15 shows that wherein wireless communication interface 1555 includes showing for multiple BB processors 1556 Example, but wireless communication interface 1555 can also include single BB processors 1556.

Connecting interface 1557 is for base station equipment 1550 (wireless communication interface 1555) to be connected to connecing for RRH 1560 Mouthful.Connecting interface 1557 can also be for base station equipment 1550 (wireless communication interface 1555) to be connected to RRH's 1560 State the communication module of the communication in high-speed line.

RRH 1560 includes connecting interface 1561 and wireless communication interface 1563.

Connecting interface 1561 is for RRH 1560 (wireless communication interface 1563) to be connected to connecing for base station equipment 1550 Mouthful.Connecting interface 1561 can also be the communication module for the communication in above-mentioned high-speed line.

Wireless communication interface 1563 transmits via antenna 1540 and receives wireless signal.Wireless communication interface 1563 is usual May include such as RF circuits 1564.RF circuits 1564 may include such as frequency mixer, filter and amplifier, and via day Line 1540 transmits and receives wireless signal.Although Figure 15 shows that a RF circuit 1564 shows with what an antenna 1540 was connect Example, but the disclosure is not limited to the diagram, but a RF circuit 1564 can connect more antennas 1540 simultaneously.

As shown in figure 16, wireless communication interface 1563 may include multiple RF circuits 1564.For example, multiple RF circuits 1564 It can support mutiple antennas element.Although Figure 16 shows that wherein wireless communication interface 1563 includes showing for multiple RF circuits 1564 Example, but wireless communication interface 1563 can also include single RF circuits 1564.

[the application example about user equipment]

First applies example

Figure 17 is to show that the exemplary of the illustrative arrangement of the smart phone 1600 of the technology of present disclosure can be applied Block diagram.Smart phone 1600 includes processor 1601, memory 1602, storage device 1603, external connection interface section 1604, camera shooting Device 1606, sensor 1607, microphone 1608, input unit 1609, display device 1610, loud speaker 1611, wireless communication Interface 1612, one or more duplexers 1615, one or more antennas 1616, bus 1617, battery 1618 and auxiliary Controller 1619.In one implementation, smart phone 1600 (or processor 1601) herein can correspond to above-mentioned electricity Sub- equipment 1000.

Processor 1601 can be such as CPU or system on chip (SoC), and control smart phone 1600 application layer and In addition the function of layer.Memory 1602 includes RAM and ROM, and the program for storing data and being executed by processor 1601.Storage Device 1603 may include storage medium, such as semiconductor memory and hard disk.External connection interface section 1604 is for will be external Device (such as storage card and universal serial bus (USB) device) is connected to the interface of smart phone 1600.

Photographic device 1606 includes that imaging sensor (such as partly lead by charge coupling device (CCD) and complementary metal oxide Body (CMOS)), and generate capture images.Sensor 1607 may include one group of sensor, such as measurement sensor, gyroscope Sensor, geomagnetic sensor and acceleration transducer.The sound that microphone 1608 will enter into smart phone 1600 is converted to sound Frequency signal.Input unit 1609 includes the touch sensing for the touch being for example configured as on the screen of detection display device 1610 Device, keypad, keyboard, button or switch, and receive from operation input by user or information.Display device 1610 includes screen (such as liquid crystal display (LCD) and Organic Light Emitting Diode (OLED) display), and show the output of smart phone 1600 Image.The audio signal exported from smart phone 1600 is converted to sound by loud speaker 1611.

Wireless communication interface 1612 supports any cellular communication scheme (such as LTE and LTE- are advanced), and executes wireless Communication.Wireless communication interface 1612 may include usually such as BB processors 1613 and RF circuits 1614.BB processors 1613 can To execute such as coding/decoding, modulating/demodulating and multiplex/demultiplex, and execute for the various types of of wireless communication Signal processing.Meanwhile RF circuits 1614 may include such as frequency mixer, filter and amplifier, and via antenna 1616 Transmission and reception wireless signal.Wireless communication interface 1612 can be to be integrated with BB processors 1613 and RF circuits 1614 thereon One chip module.As shown in figure 17, wireless communication interface 1612 may include multiple BB processors 1613 and multiple RF circuits 1614.Although Figure 17 shows that wherein wireless communication interface 1612 includes showing for multiple BB processors 1613 and multiple RF circuits 1614 Example, but wireless communication interface 1612 can also include single BB processors 1613 or single RF circuits 1614.

In addition, other than cellular communication scheme, wireless communication interface 1612 can support another type of wireless communication Scheme, such as short-distance wireless communication scheme, near-field communication scheme and WLAN (LAN) scheme.In the case, wirelessly Communication interface 1612 may include the BB processors 1613 and RF circuits 1614 for each radio communication system.

The multiple circuits of each in duplexer 1615 in being included in wireless communication interface 1612 are not (such as With radio communication system circuit) between switch antenna 1616 connection destination.

Each in antenna 1616 (is such as included in multiple in mimo antenna including single or multiple antenna elements Antenna element), and wireless signal is transmitted and received for wireless communication interface 1612.As shown in figure 17, smart phone 1600 It may include mutiple antennas 1616.Although Figure 16 shows that wherein smart phone 1600 includes the example of mutiple antennas 1616, Smart phone 1600 can also include individual antenna 1616.

In addition, smart phone 1600 may include the antenna 1616 for each radio communication system.In the case, day Wiretap 1615 can be omitted from the configuration of smart phone 1600.

Bus 1617 fills processor 1601, memory 1602, storage device 1603, external connection interface section 1604, camera shooting 1606, sensor 1607, microphone 1608, input unit 1609, display device 1610, loud speaker 1611, wireless communication is set to connect Mouth 1612 and pilot controller 1619 are connected to each other.Battery 1618 is via feeder line to each of smart phone shown in Figure 16 1600 A block provides electric power, and feeder line is partly shown as dotted line in figure.Pilot controller 1619 for example operates intelligence in a sleep mode The required function of minimum of energy phone 1600.

Second applies example

Figure 18 is to show that showing for the illustrative arrangement of the car navigation device 1720 of the technology of present disclosure can be applied The block diagram of example.Car navigation device 1720 include processor 1721, memory 1722, global positioning system (GPS) module 1724, Sensor 1725, data-interface 1726, content player 1727, storage medium interface 1728, input unit 1729, display device 1730, loud speaker 1731, wireless communication interface 1733, one or more duplexer 1736, one or more antennas 1737 with And battery 1738.In one implementation, car navigation device 1720 (or processor 1721) herein can correspond to State electronic equipment 1000.

Processor 1721 can be such as CPU or SoC, and control the navigation feature and in addition of car navigation device 1720 Function.Memory 1722 includes RAM and ROM, and the program for storing data and being executed by processor 1721.

GPS module 1724 is (all come the position for measuring car navigation device 1720 using the GPS signal received from GPS satellite Such as latitude, longitude and altitude).Sensor 1725 may include one group of sensor, such as gyro sensor, geomagnetic sensor and Air pressure probe.Data-interface 1726 is connected to such as In-vehicle networking 1741 via unshowned terminal, and obtains The data (such as vehicle speed data) generated by vehicle.

Content player 1727 reproduces the content being stored in storage medium (such as CD and DVD), which is inserted Enter into storage medium interface 1728.Input unit 1729 includes for example being configured as on the screen of detection display device 1730 Touch sensor, button or the switch of touch, and receive from operation input by user or information.Display device 1730 includes all Such as LCD or the screen of OLED display, and show the image of navigation feature or the content of reproduction.The output navigation of loud speaker 1731 The sound of function or the content of reproduction.

Wireless communication interface 1733 supports any cellular communication scheme (such as LTE and LTE- are advanced), and executes wireless Communication.Wireless communication interface 1733 may include usually such as BB processors 1734 and RF circuits 1735.BB processors 1734 can To execute such as coding/decoding, modulating/demodulating and multiplex/demultiplex, and execute for the various types of of wireless communication Signal processing.Meanwhile RF circuits 1735 may include such as frequency mixer, filter and amplifier, and via antenna 1737 Transmission and reception wireless signal.Wireless communication interface 1733 can also be to be integrated with BB processors 1734 and RF circuits 1735 thereon A chip module.As shown in figure 18, wireless communication interface 1733 may include multiple BB processors 1734 and multiple RF electricity Road 1735.Although Figure 18 shows that wherein wireless communication interface 1733 includes multiple BB processors 1734 and multiple RF circuits 1735 Example, but wireless communication interface 1733 can also include single BB processors 1734 or single RF circuits 1735.

In addition, other than cellular communication scheme, wireless communication interface 1733 can support another type of wireless communication Scheme, such as short-distance wireless communication scheme, near-field communication scheme and Wireless LAN scheme.In the case, wireless for each Communication plan, wireless communication interface 1733 may include BB processors 1734 and RF circuits 1735.

The multiple circuits of each in duplexer 1736 in being included in wireless communication interface 1733 are (such as not With radio communication system circuit) between switch antenna 1737 connection destination.

Each in antenna 1737 (is such as included in multiple in mimo antenna including single or multiple antenna elements Antenna element), and wireless signal is transmitted and received for wireless communication interface 1733.As shown in figure 18, car navigation device 1720 may include mutiple antennas 1737.Although Figure 17 shows that wherein car navigation device 1720 includes showing for mutiple antennas 1737 Example, but car navigation device 1720 can also include individual antenna 1737.

In addition, car navigation device 1720 may include the antenna 1737 for each radio communication system.In this situation Under, duplexer 1736 can be omitted from the configuration of car navigation device 1720.

Battery 1738 provides electric power via feeder line to each piece of car navigation device shown in Figure 18 1720, and feeder line is being schemed It is middle to be partly shown as dotted line.Battery 1738 accumulates the electric power provided from vehicle.

The technology of present disclosure can also be implemented as including car navigation device 1720, In-vehicle networking 1741 and vehicle The onboard system (or vehicle) 1740 of one or more of module 1742 block.It is (all that vehicle modules 1742 generate vehicle data Such as speed, engine speed and fault message), and the data generated are exported to In-vehicle networking 1741.

Finally, inventor provides under two kinds of channel status H (two kinds of channel gain H1=[4 of i.e. 6 users by Figure 19 4221 1] and H2=[8 8441 1]), (the 2 dimension constellation symbols of 6 users are converted to 4 based on SCMA algorithms Tie up sparse code word) using above-mentioned Fig. 5 B, two kinds of data detection schemes of Fig. 5 C when bit error rate performance simulation result.In Figure 19, Fig. 5 C, 5B schemes performance curve be respectively labeled as SIC-1 and SIC-2, the performance of origination message propagation algorithm as a comparison Curve is labeled as MPA.In other words, SIC-1 curves reflect:Receiving terminal is according to signal y is received, first to the letter of the first two user 1,2 It number is decoded, factor graph matrix at this time is F1, the signal of other users is taken as interference;Decode the first two user 1, 2 signal x1,x2Afterwards, the signal decoded is subtracted from reception signal y, then MPA decodings are carried out to user 3,4,5,6, at this time Factor graph matrix be F2With F3Intersection, to decode the data of user 3,4,5,6.And SIC-2 curves reflect:Receiving terminal According to signal y is received, first the signal of the first two user is decoded, factor graph matrix at this time is F1, the letter of other users Number it is taken as interference;In the signal x for decoding the first two user1,x2Afterwards, the signal decoded is subtracted from reception signal y, User 3,4 is decoded again, factor graph matrix at this time is F2, the signal of latter two user is taken as interference;It is decoding 3, the signal x of 4 users3,x4Afterwards, then the signal decoded is subtracted, finally user 5,6 is decoded, factor graph square at this time Battle array is F3

The Performance Simulation Results of Figure 19 show the increase with the subscriber channel gain inequality opposite sex, in terms of bit error rate performance, Smaller and smaller based on the data detection scheme of serial interference elimination and the gap of message propagation algorithm, i.e., performance loss is increasingly It is small.(such as H2=[8 8441 1]), damages of the SIC-1 on bit error rate performance when the otherness of subscriber channel gain is larger Mistake can be ignored.In addition, from decoding complex degree, there can be SIC-2<SIC-1<MPA.As it can be seen that being based on the disclosure Scheme can regard specific system situation carry out suitable user grouping, be grouped again, be grouped in resource re-allocation and Data Detection At least one of in scheme update, make mode field multiple access schemes to obtain the compromise of decoding complex degree, the bit error rate Suitable for practical application.

The exemplary embodiment of the disclosure is described above by reference to attached drawing, but the disclosure is certainly not limited to above example. Those skilled in the art can obtain various changes and modifications within the scope of the appended claims, and should be understood that these changes and Modification nature will be fallen into scope of the presently disclosed technology.

For example, can be realized in the embodiment above by the device separated including multiple functions in a unit. As an alternative, the multiple functions of being realized in the embodiment above by multiple units can be realized by the device separated respectively.In addition, with One of upper function can be realized by multiple units.Needless to say, such configuration includes in scope of the presently disclosed technology.

In this specification, described in flow chart the step of includes not only the place executed in temporal sequence with the sequence Reason, and include concurrently or individually rather than the processing that must execute in temporal sequence.In addition, even in temporal sequence In the step of processing, needless to say, the sequence can also be suitably changed.

Although the disclosure and its advantage has been described in detail it should be appreciated that do not departing from by the attached claims Defined by can carry out various changes, replacement and transformation in the case of spirit and scope of the present disclosure.Moreover, the disclosure is implemented Example the terms "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion so that include one The process, method, article or equipment of list of elements includes not only those elements, but also includes other being not explicitly listed Element, or further include for elements inherent to such a process, method, article, or device.In the feelings not limited more Under condition, the element that is limited by sentence "including a ...", it is not excluded that including the element process, method, article or There is also other identical elements in person's equipment.

Claims (36)

1. a kind of electronic equipment for wireless communication system, including:
Processing circuit, the processing circuit are configured as:
Terminal device grouping is carried out for data transmission, wherein terminal device in same grouping based on terminal device information Multiple data flows are accessed by mode field multiple access and carry out resource multiplex;And
Detection information based on data transmission carries out terminal device and is grouped again, is grouped interior resource re-allocation and data detection scheme more At least one of in new,
Wherein, data detection scheme is used to be decoded to receiving data based on serial sensing algorithm.
2. electronic equipment according to claim 1, wherein the terminal device information includes channel state information, and Terminal device is grouped:
Terminal device is included into grouping according to channel state information so that the channel gain between terminal device in same grouping Otherness is big as possible or is more than predetermined threshold,
Wherein, the terminal device is grouped so that the terminal device of same grouping is multiplexed same group of resource, the terminal of different grouping Equipment uses different resources.
3. electronic equipment according to claim 1, wherein the processing circuit is additionally configured to determine Data Detection side Case, including:Terminal device in grouping is classified so that at least one rank includes two or more terminal devices,
Wherein, the terminal device of different stage is detected by serial sensing algorithm, two or more ends of same rank End equipment is detected by parallel detection algorithm.
4. electronic equipment according to claim 2, wherein by terminal device be included into grouping include it is following at least one Person:
Terminal device is ranked up based on channel gain, each terminal device is included into different grouping successively;And
Terminal device is matched in packet configuration template based on channel gain, wherein the end in packet configuration template designated packet The channel gain level of end equipment number and terminal device.
5. electronic equipment according to claim 3, wherein the processing circuit is additionally configured to determine resource point in grouping Match, the resource allocation keeps the overlapping of the resource between the data flow of the terminal device of same rank small as possible.
6. electronic equipment according to claim 3, wherein it includes setting terminal to carry out classification to the terminal device in grouping It is standby to be included into appropriate level according to channel gain height, the data flow of the terminal device in rank corresponding with higher channel gain Detection ordering is more forward.
7. electronic equipment according to claim 6, wherein the down link data from base station to terminal device is passed It is defeated, in the case where the decoding capability of particular terminal device only supports serial sensing algorithm, the terminal device in grouping is carried out Classification further includes distributing higher downlink transmitted power to the particular terminal device, and the particular terminal device is individually returned Enter detection ordering rank forward as possible.
8. electronic equipment according to claim 2, wherein the down link data from base station to terminal device is passed It is defeated, in the case where the decoding capability of particular terminal device only supports serial sensing algorithm, terminal device is included into grouping and is also wrapped Including only to support the terminal device of serial sensing algorithm to be included into same grouping, and the terminal device in the grouping only passes through serial sensing Algorithm is detected.
9. electronic equipment according to claim 3, wherein detection information includes detection error information, to data flow In the case that detection error is unsatisfactory for the bit error rate or retransmission rate requirement, at least one of is executed:
It carries out terminal device to be grouped again, to increase the channel gain difference of the terminal device in grouping;
Data detection scheme update is carried out, with inspection of the data flow of each terminal device in adjustment grouping in serial sensing algorithm Survey sequence;
Data detection scheme update is carried out, to adjust the number of levels of serial sensing in serial sensing algorithm;
Be grouped interior resource re-allocation so that in serial sensing algorithm the data flow of the forward terminal device of detection ordering with The resource overlapping of other data flows of detection ordering behind reduces;And
It is grouped interior resource re-allocation, so that the money between the data flow of the terminal device of the same rank in same grouping Source overlapping reduces.
10. electronic equipment according to claim 3, wherein detection information includes detection error information, data detection scheme Update includes the number of levels reduced in the case where system average detected error is unsatisfactory for average error rate requirement in grouping.
11. electronic equipment according to claim 3, wherein detection information includes detection complexity information, Data Detection side Case update includes the terminal device increased in the case where detection complexity is higher than detection complexity threshold value in terminal device grouping Number of levels.
12. electronic equipment according to claim 1 again, wherein be grouped based on detection information progress terminal device, resource weight At least one in distribution and data detection scheme update is periodic;And/or
It is based at least one detection information progress terminal device is grouped, resource re-allocation and data detection scheme update again in Event triggering, trigger event include detection error be unsatisfactory for the bit error rate or retransmission rate require up to the first predetermined lasting time and/ Or detection complexity is higher than detection complexity threshold value up to the second predetermined lasting time.
13. electronic equipment according to claim 1, the processing circuit is additionally configured to:For from terminal device to base The uplink data transmission stood notifies corresponding resource allocation result after carrying out resource re-allocation to terminal device.
14. electronic equipment according to claim 1, the processing circuit is additionally configured to:For being set from base station to terminal Standby downlink transmission, in progress terminal device is grouped, resource re-allocation and data detection scheme update again extremely After one item missing corresponding terminal device weight group result, resource re-allocation result and newer Data Detection are notified to terminal device It is at least one of described in scheme.
15. electronic equipment according to claim 1, the processing circuit is additionally configured to:For being set from base station to terminal Standby downlink transmission obtains the detection information of downlink transmission to carry out terminal device weight from terminal device At least one of during resource re-allocation and data detection scheme update in grouping, grouping.
16. a kind of electronic equipment for wireless communication system, including:
Processing circuit, the processing circuit are configured as:
Obtain terminal device group result, the terminal device group result be based on terminal device information for data transmission and It is determined, wherein multiple data flows of the terminal device in same grouping are accessed by mode field multiple access and carry out resource multiplex; And
Obtain at least one in terminal device weight group result, resource re-allocation result and newer data detection scheme, institute At least one stated in terminal device weight group result, resource re-allocation result and newer data detection scheme is to be based on data The detection information of transmission and it is determined,
Wherein, data detection scheme solves the reception data received based on serial sensing algorithm for the electronic equipment Code.
17. electronic equipment according to claim 16, wherein the terminal device information includes channel state information, and And terminal device grouping includes:
Terminal device is included into grouping according to channel state information so that the channel gain between terminal device in same grouping Otherness is big as possible or is more than predetermined threshold,
Wherein, the terminal device is grouped so that the terminal device of same grouping is multiplexed same group of resource, the terminal of different grouping Equipment uses different resources.
18. electronic equipment according to claim 16, wherein the processing circuit is additionally configured to obtain data from base station Detection scheme, base station determine that data detection scheme includes:Terminal device in grouping is classified so that at least one rank Including two or more terminal devices,
Wherein, the terminal device of different stage is detected by serial sensing algorithm, two or more ends of same rank End equipment is detected by parallel detection algorithm.
19. electronic equipment according to claim 17, wherein by terminal device be included into grouping include it is following at least one Person:
Terminal device is ranked up based on channel gain, each terminal device is included into different grouping successively;And
Terminal device is matched in packet configuration template based on channel gain, wherein the end in packet configuration template designated packet The channel gain level of end equipment number and terminal device.
20. electronic equipment according to claim 18, wherein the processing circuit is additionally configured to be grouped from base station Interior resource allocation result, the resource allocation result make the overlapping of the resource between the data flow of the terminal device of same rank as possible It is small.
21. electronic equipment according to claim 18, wherein it includes by terminal to carry out classification to the terminal device in grouping Equipment is included into appropriate level according to channel gain height, the data flow of the terminal device in rank corresponding with higher channel gain Detection ordering it is more forward.
22. electronic equipment according to claim 21, wherein only support serially to examine in the decoding capability of the electronic equipment In the case of method of determining and calculating, which is assigned higher downlink transmitted power, and the electronic equipment is individually returned Enter detection ordering rank forward as possible.
23. electronic equipment according to claim 17, wherein only support serially to examine in the decoding capability of the electronic equipment In the case of method of determining and calculating, which is included into the grouping for the terminal device for only supporting serial sensing algorithm, in the grouping Terminal device is only detected by serial sensing algorithm.
24. electronic equipment according to claim 18, wherein detection information includes detection error information, to data flow Detection error be unsatisfactory in the case that the bit error rate or retransmission rate require, base station executes at least one of:
It carries out terminal device to be grouped again, to increase the channel gain difference of the terminal device in grouping;
Data detection scheme update is carried out, with inspection of the data flow of each terminal device in adjustment grouping in serial sensing algorithm Survey sequence;
Data detection scheme update is carried out, to adjust the number of levels of serial sensing in serial sensing algorithm;
Be grouped interior resource re-allocation so that in serial sensing algorithm the data flow of the forward terminal device of detection ordering with The resource overlapping of other data flows of detection ordering behind reduces;And
It is grouped interior resource re-allocation, so that the money between the data flow of the terminal device of the same rank in same grouping Source overlapping reduces.
25. electronic equipment according to claim 18, wherein detection information includes detection error information, Data Detection side Case update includes the number of levels reduced in the case where system average detected error is unsatisfactory for average error rate requirement in grouping.
26. electronic equipment according to claim 18, wherein detection information includes detection complexity information, Data Detection Scheme update includes that the terminal increased in the case where detection complexity is higher than detection complexity threshold value in terminal device grouping is set Standby number of levels.
27. electronic equipment according to claim 16 again, wherein be grouped based on detection information progress terminal device, resource It is periodic to reassign at least one in data detection scheme update;And/or
It is based at least one detection information progress terminal device is grouped, resource re-allocation and data detection scheme update again in Event triggering, trigger event include detection error be unsatisfactory for the bit error rate or retransmission rate require up to the first predetermined lasting time and/ Or detection complexity is higher than detection complexity threshold value up to the second predetermined lasting time.
28. electronic equipment according to claim 16, the processing circuit is additionally configured to:It detects and believes to base station report Breath is used for the terminal device that base station carries out is grouped, is grouped in interior resource re-allocation and data detection scheme update again at least one .
29. the electronic equipment according to claim 22 or 23, the processing circuit is additionally configured to:To base station report terminal The decoding capability of equipment.
30. electronic equipment according to claim 16, wherein the electronic equipment is configurable for terminal equipment side, The terminal device is configured as based on terminal device weight group result, resource re-allocation result and newer data detection scheme In at least one of the reception data received from base station are decoded.
31. a method of for communication, including:
Terminal device grouping is carried out for data transmission, wherein terminal device in same grouping based on terminal device information Multiple data flows are accessed by mode field multiple access and carry out resource multiplex;And
Detection information based on data transmission carries out terminal device and is grouped again, is grouped interior resource re-allocation and data detection scheme more At least one of in new,
Wherein, data detection scheme is used to be decoded to receiving data based on serial sensing algorithm.
32. a kind of method for communication, including:
Obtain terminal device group result, the terminal device group result be based on terminal device information for data transmission and It is determined, wherein multiple data flows of the terminal device in same grouping are accessed by mode field multiple access and carry out resource multiplex; And
Obtain at least one in terminal device weight group result, resource re-allocation result and newer data detection scheme, institute At least one stated in terminal device weight group result, resource re-allocation result and newer data detection scheme is to be based on data The detection information of transmission and it is determined,
Wherein, data detection scheme is for being decoded the reception data received based on serial sensing algorithm.
33. a kind of electronic equipment for wireless communication system, including:
Serial sensing receiver, the serial sensing receiver are configured to contain the parallel detection unit of at least two-stage, with Classification decoding is carried out in the mode field multiple access access signal to receiving,
Wherein, parallel multi-terminal equipment Data Detection is supported per level-one parallel detection unit, and
Wherein, the decoding of the other parallel detection unit of prime export as the known disturbances in rear rank parallel detection unit with Just it is eliminated from the mode field multiple access access signal received, and in the target data stream of the other parallel detection unit of prime Resource orthogonality is better than the resource orthogonality in the target data stream of the other parallel detection unit of rear class.
34. electronic equipment according to claim 33, wherein the serial sensing receiver corresponds to SIC receivers, institute It states parallel detection unit and corresponds to MPA units.
35. electronic equipment according to claim 34, wherein the access of mode field multiple access includes SCMA or PDMA.
36. a kind of computer readable storage medium being stored with one or more instructions, one or more of instructions are by electricity The one or more processors of sub- equipment make the electronic equipment execute the method according to claim 31 or 32 when executing.
CN201710053390.2A 2017-01-24 2017-01-24 Electronic equipment and method for wireless communication system CN108347291A (en)

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Application publication date: 20180731